Isabella Guzman, Aurora
18-Year-Old, Allegedly Stabbed Mother 79 Times
September 6, 2013
An 18-year-old in Colorado is facing
first-degree murder charges after allegedly stabbing her mother in
the face and neck 79 times.
The teen's stepfather, Ryan Hoy, called Aurora
Police to the home on the night of Aug. 28 when he saw blood
pooling under the door of the upstairs bathroom. According to the
arrest affidavit, Hoy told dispatch that police had already been
called to the house earlier that day because his stepdaughter,
Isabella Guzman, had allegedly threatened her mother Yun-Mi Hoy in
an email telling her, "You will pay."
Guzman's biological father, Robert Guzman, also
claimed he had a talk with Isabella before the 911 call.
"I went to talk to Isabella and we sat down in
the backyard looking at the trees and the animals and I started to
talk to her about the respect that people should have for their
parents," Robert Guzman told 7News. "And I was trying to let her
know that she should be obedient to her parents, not rebellious,
that she should try to listen more and everything was going fine.
In the conversation, I thought that I made progress. But obviously
it didn't do nothing, because hours later, this thing happened."
While on the phone with dispatch, Hoy said that
at first he was unable to open the door because Guzman wouldn't
let him enter and he heard Yun-Mi Hoy say "Jehovah" before the
bathroom door opened.
"Hoy then observed Isabella Guzman standing in
the doorway holding a knife," the affidavit reads. "Hoy advised
that he never heard Guzman say anything and that she didn't speak
to him as she exited the bathroom... [she] was just staring
straight ahead when she walked past him."
Hoy told dispatch that Guzman left wearing a
pink sports bra and turquoise shorts, taking the knife with her.
While performing chest compressions on his wife, Hoy said he
believed his wife was already dead because she was staring blankly
When officers arrived on the scene, they found
Yun-Mi Hoy lying naked on the bathroom floor covered in blood next
to a baseball bat. An autopsy found that she had suffered 31 stabs
to the face and 48 stab wounds to the neck.
Guzman was found by police the next day in a
nearby parking garage and was arrested. She was due to be formally
charged in Arapahoe County court on Thursday morning, but the
judge was forced to push back the court date until later in the
afternoon because Guzman refused to come out of her cell.
At the beginning of her hearing, 9News reports
that Guzman was smiling and made faces at the courtroom camera.
She is being held without bond and is facing charges of
first-degree murder and two counts of a crime of violence.
Guzman, who turned 18 in June, will be charged
as an adult and is eligible for the death penalty.
Isabella Guzman charged with
first-degree murder in mom's stabbing death
By Kim Nguyen - TheDenverChannel.com
September 5, 2013
AURORA, Colo. - The 18-year-old suspected of
stabbing her mother 79 times in the face and neck appeared in
court Thursday to be formally charged with murder.
Isabella Guzman smiled briefly at the beginning
of hearing as she listened to her attorney and the judge.
The judge informed her she will be facing one
count of first-degree murder and two counts of crime of violence,
a sentence-enhancing charge.
Wearing an orange jumpsuit and shackles on her
wrists and legs, Guzman listened intently as the judge started
reading the complaint against her. Toward the end of her hearing,
Guzman's eyes begin tearing up and she looked into the camera and
pointed to her eyes as if to draw attention to that fact. She was
also making a face at the camera.
Thursday's morning hearing was pushed back to
the afternoon because Guzman refused to leave her jail cell,
according to court officials.
Guzman is accused of killing her mother on Aug.
Court documents indicate that Guzman had a
contentious relationship with her mother, Yun-Mi Hoy, who had been
concerned enough with her threatening behavior to call police that
Aurora police officers came to their house and
warned Guzman that her mom could kick her out for her behavior.
It seemed to calm her down, but later that
night, after her mother went to take a shower after work, Guzman's
stepfather heard a thump. He ran upstairs and saw blood oozing out
from under the bathroom door.
Court documents indicate that he later saw
Guzman leaving the bathroom with a knife in her hand, staring
straight ahead and not saying a word.
Her mother was found naked, lying next to a
baseball bat, surrounded by blood.
Guzman fled the home, but police arrested her
the next day not far from her house, near a parking lot at South
Parker Road and South Havana Street.
Outside Guzman's home now, there are two
dumpsters in the front yard filled with stuffed animals, jewelry
and other belongings. There was also a picture of a younger Guzman
on the ground by the dumpsters.
Guzman, suspect in Aurora stabbing, to mom: "You will pay"
By Sadie Gurman - The Denver Post
August 30, 2013
CENTENNIAL — Isabella Guzman, accused of
fatally stabbing her mother 79 times in Aurora, sent her an e-mail
the day before that said, "You will pay," according to an arrest
affidavit filed Friday.
Guzman and her mother often fought, but the
teenager had become "more threatening and disrespectful" toward
Yun-Mi Hoy in recent days, her stepfather, Ryan Hoy, told
authorities. Her mother had grown so fearful that she called
Aurora police, who on Wednesday afternoon warned Guzman that her
mother could kick her out of their home if she did not shape up.
Hours later, officers returned to the home in
the 2600 block of South Lima Street to find Yun-Mi Hoy dead in an
upstairs bathroom, the affidavit said.
Guzman, 18, who was arrested Thursday after a
16-hour manhunt, appeared Friday before Arapahoe County Judge
Stephen F. Collins, who ordered her to remain jailed without bond
on suspicion of first-degree murder. She sat silently in an orange
jumpsuit, a bandage on her right wrist.
Yun-Mi Hoy came home from work about 9:30 p.m.
Wednesday and took a shower, Ryan Hoy told police. Soon after, he
heard a "thumping" and his wife calling his name. Guzman was
pushing up against the bathroom door keeping him from opening it,
according to the affidavit.
He went downstairs to call the police, and when
he returned he said he saw Guzman standing in the bathroom doorway
holding a knife, and his wife on the floor, covered in blood.
There was a baseball bat beneath her.
"He never heard Guzman say anything, and she
didn't speak to him as she exited the bathroom," the affidavit
says. "Guzman was just staring straight ahead when she walked past
Homicide detectives offered no clues about a
motive, but Ryan Hoy told them the teenager had been a challenge.
His wife had sent Guzman to live with her biological father when
she was about 7 because her behavior had become so difficult.
But Guzman's aunt, Melanie Guzman, said she saw
a typical teenager when she visited the family a few months ago.
Guzman could get angry, but violence seemed outside her character.
Her mother spoiled her, she said.
She said she feels aspects of the police
investigation remain undone and "there's something more to it."
"Her demeanor is pretty sweet. She's very
coquette. I can see her yelling, screaming and storming off and
locking herself in her room and turning on her iPod," Guzman said.
"But not being violent like that."
Affidavit: 18-year-old Aurora woman,
Isabella Guzman, stabbed mother 79 times in face and neck
Teen told mom: 'You will pay'
By Alan Gathright - TheDenverChannel.com
August 30, 2013
CENTENNIAL, Colo. - Eighteen-year-old Isabella
Yun-Mi Guzman emailed her mother "you will pay" and later spit in
her face on the day before she allegedly killed her mother by
stabbing her 79 times in her face and neck in the bathroom of
their Aurora home, according to court records.
An autopsy showed the mother, 47-year-old Yun-Mi
Hoy, died after being stabbed repeatedly in the face and neck,
according to an arrest affidavit obtained by 7NEWS.
The teen's stepfather, Ryan Hoy, said his wife
was attacked as she went to take a shower in an upstairs bathroom
on Wednesday night. The stepfather told police he was eating
dinner downstairs when he heard a thumping sound upstairs and his
wife calling his name.
The stepfather said he rushed upstairs and
heard the shower running and tried to push his way through the
closed bathroom door. He said he caught a glimpse of Isabella, who
pushed the door shut with her back and locked it.
Ryan Hoy said he saw blood seeping from under
the bathroom door and ran to get his cellphone and called 911,
telling a call-taker that he believed his wife was being attacked,
the affidavit said.
The stepfather rushed back to the bathroom with
911 still on the phone and heard his wife say "Jehovah," the
Then the bathroom door opened and Isabella
walked out, holding a knife downward in her right hand, the
stepfather said. He said Isabella never said a word and stared
straight ahead as she walked past him and went downstairs.
Ryan Hoy said he looked into the bathroom and
saw the naked body of his wife, covered in blood on the floor. Her
throat had been slashed, he told police, and a baseball bat was
lying under her body.
Following the 911 dispatcher's instructions,
Ryan Hoy tried to open his wife's airway and perform CPR. But he
later told police his wife's eyes were staring blankly and he
thought she was already dead. She was pronounced dead at the
The stepfather said Isabella Guzman took the
knife and fled the home clad only in a pink athletic bra and
turquoise shorts, the affidavit said. She was arrested Thursday
afternoon by Aurora police at a parking garage 2851 S. Parker
Road, near East Hampden Avenue.
Ryan Hoy said his stepdaughter had argued with
her mother often since she was young and, when she was about 7
years old, she had been sent to live with her father, Robert
Guzman, for a while.
The stepfather said Isabella had become more
"threatening and disrespectful" to her mother recently, including
yelling at her mom and spitting in her face on Tuesday. Yun-Mi Hoy
was so frightened of her daughter she asked her husband to sleep
in the bedroom with her, the stepfather told police.
Then on Wednesday morning Yun-Mi Hoy showed her
husband an email her daughter sent her that said in effect "you
will pay," Ryan Hoy told police.
This prompted the mother to call police later
Wednesday and ask officers to come to the home because her
daughter "had threatened to harm her," the affidavit said.
Officers responding to the domestic disturbance
arrived at the home and spoke with the mother and daughter,
cautioning Isabella that her mother could throw her out of the
home for her behavior, Ryan Hoy told police.
The teen's father, Robert Guzman, told 7NEWS he
had counseled his daughter at her mother's request just hours
before the killing. He said Isabella's mother was concerned about
her teenage rebelliousness and her need to respect her elders.
The stepfather said things appeared to have
calmed down after the police visit and the teen stayed in her room
for the rest of the evening.
On Friday morning, a judge ordered Isabella
Guzman held without bond on investigation of first-degree murder.
Guzman had a bandage on her right wrist and was
wearing an orange jail jumpsuit during the brief appearance in
Arapahoe County court, our partners at The Denver Post reported.
She is being held in the Arapahoe County Jail.
Suspected homicide evidence found at parking
Officers detained the teen after someone called
911 about 11:30 a.m to report a "body" inside a car in the parking
garage on South Parker Road. Arriving officers found the car, but
no one was inside.
"They did find items in the car, however, that
led them to believe these items were related to the earlier
homicide," Aurora police spokesman Frank Fania said.
Police called in undercover officers to help
search the garage and "additional items were found that were
believed to be involved [in the homicide] as well," Fania said.
A police K-9 team joined the search.
"At one point, Guzman was seen by officers
walking out of the garage. She was then detained and taken to
headquarters," Fania said.
Glenn Petty, who works in a nearby office
building, said his secretary drew his attention to a handler with
a dog searching the parking lot outside.
Petty said he saw a man dressed like a
motorcycle gang member, who turned out to be an undercover
officer, walking into the parking garage as a young woman walked
out. Petty said the man and the woman briefly spoke and then she
turned and walked away into a parking lot.
The first undercover officer followed the woman
and was soon joined by two other plain clothes officers as they
surrounded the young woman, who was carrying a plastic shopping
"Suddenly, all three officers pulled guns" and
the woman sat down next to a bush on a raised parking lot median,
"It was very smoothly and very professionally
done," Petty said. "It gave me a good feeling about the Aurora
Family 'heartbroken' by death
Robert Guzman spoke to 7NEWS before his
daughter's arrest. He said the family was stunned by the death of
"We're heartbroken. Of course we're upset over
the death of my ex-wife," Robert Guzman said.
The father said he went to talk with Isabella
at his ex-wife's request about three hours before the killing at
the home where Isabella lived with her mother.
The father indicated Isabella had been engaging
in teen rebelliousness.
"I went to talk to her because her mother was
worried and wanted me to talk to Isabella," Robert Guzman said.
"So, I went to talk to Isabella and we sat down in the backyard
looking at the trees and the animals and I started to talk to her
about the respect that people should have for their parents. And I
was trying to let her know that she should be obedient to her
parents, not rebellious, that she should try to listen more and
everything was going fine.
"In the conversation, I thought that I made
progress, but obviously it didn't do nothing, because hours later,
this thing happened," the father said.
"Isabella is a good kid, she's a good hearted,"
Robert Guzman said. "But I don't know what could've happened,
honestly, to provoke this kind of reaction."
Facebook photos show teen in 'Hello Kitty'
If there's a murder suspect stereotype, Guzman
doesn't look the part.
The teen -- who goes by the nickname "Isa" --
looks like a beauty queen or model in photos on her Facebook page.
Her page has a photo of a watermelon slice with
the word "Love" carved into it. There's also a photo of her
wearing a 'Hello Kitty' T-shirt and jeans standing in front of a
rock band set from a singing competition last year.
Teen daughter questioned in
slaying of woman in Aurora home
By Kieran Nicholson, Carlos Illescas and Sadie
Gurman - The Denver Post
August 29, 2013
AURORA —Police late Thursday were questioning
an 18-year-old woman in connection with the stabbing death of her
mother in the family's south Aurora home 16 hours earlier.
Detectives were not formally holding Isabella
Guzman for investigation of homicide because she wasn't carrying
positive identification. But they said no other suspects were
Guzman was detained as she was leaving the
parking garage of a Parker Road office building late Thursday
Police had been called to the garage after
reports of a body inside a car. They found no body, but did find
items in the car and around the garage they say are linked to
Guzman's mother's slaying, police spokesman Frank Fania said
The suspect's father, Robert Guzman, said his
daughter and her mother, whom he identified as his ex-wife, Yun Mi
Hoy, "were getting into fights all the time."
He said Isabella Guzman spit on her mother's
face the night before the slaying.
Police were called about 10 p.m. Wednesday to
the home in the 2600 block of South Lima Street on a family
disturbance, Fania said. When officers arrived, a man at the front
door told them a woman was upstairs in need of help.
Emergency medical responders arrived a short
time later and the woman was pronounced dead at the scene. Police
have not officially released her identity.
The victim appeared to have at least one stab
wound, said Fania, who was at the scene. He described the incident
Robert Guzman said police came to his home late
Wednesday and told him his ex-wife had been killed. She had called
him the night before the stabbing, saying she and her daughter had
gotten into a bad fight.
"It's heartbreaking," he said.
Robert Guzman said his ex-wife owned Bella's
Portrait Studio at the Town Center at Aurora, and often worked
long, 12-hour days. His daughter sometimes worked at her mother's
studio, he said.
"She was really a hard-working woman," he said
of his ex-wife. "She tried really, really hard for her family, but
Isabella didn't appreciate anything she did for her."
Isabella Guzman dropped out of Overland High
School, her father said.
Denver Post online producer Daniel J. Schneider
and researcher Vickie Makings contributed to this report.