Defense attorney Megan Thomas shows off a carhart jacket belonging to Charles Ross during closing arguments
in the trial of trial of Charles Severance at the Fairfax County Circuit Court in Fairfax, Virginia, on
Wednesday, October 28, 2015.
(Photo by Nikki Kahn/The Washington Post)

Defense attorney Megan Thomas holds up a photo of Charles Severance during closing arguments in
his trial at the Fairfax County Circuit Court in Fairfax, Virginia, on Wednesday, October 28, 2015.
(Photo by Nikki Kahn/The Washington Post)

A document written by Charles Severance, and titled 2d6 Chess, is displayed by on a court room monitor by
the defense during trial at the Fairfax County Circuit County in Fairfax, Va., Wednesday, Oct. 21, 2015.
(AP Photo/Cliff Owen, Pool)

An email written by Charles Severance to the mayor of Charleston, West Virginia.
(AP Photo/Cliff Owen, Pool)

Julien J. Mason, Jr., forensic firearms and tool mark examiner, Virginia Department of Forensic Science,
holds a North American Arms .22LR five-shot revolver while providing testimony in the Charles Severance
 trial, Tuesday, Oct. 20, 2015, at the Fairfax County Circuit County in Fairfax, Va.
(AP Photo/Cliff Owen, Pool)

Documents written by Charles Severance are displayed on a court room monitor as the prosecution questions
Alexandria Police Detective Sergeant David Cutting, during the trial at the Fairfax County Circuit County, in
Fairfax, Va., Tuesday, Oct. 20, 2015.
(AP Photo/Cliff Owen, Pool)

Documents written by Charles Severance are displayed on a court room monitor as the prosecution
questions Alexandria Police Detective Sergeant David Cutting, during the trial at the Fairfax County
Circuit County, in Fairfax, Va., Tuesday, Oct. 20, 2015.
(AP Photo/Cliff Owen, Pool)

Documents written by Charles Severance are displayed on a court room monitor as the prosecution questions
Alexandria Police Detective Sergeant David Cutting, during the trial at the Fairfax County Circuit County, in
Fairfax, Va., Tuesday, Oct. 20, 2015.
(AP Photo/ Cliff Owen, Pool)

Documents written by Charles Severance are displayed on a court room monitor as the prosecution questions
 Alexandria Police Detective Sergeant David Cutting, during the trial at the Fairfax County Circuit County, in
Fairfax, Va., Tuesday, Oct. 20, 2015.
(AP Photo/ Cliff Owen, Pool)

A photograph of Charles Severance, right, is shown next to an image of a man taken from surveillance video
leaving a Target store the day Nancy Dunning was murdered, is shown on a monitor during a murder trial in
Fairfax County Circuit Court on Friday, Oct. 16, 2015, in Fairfax, Va.
(AP Photo/Evan Vucci, Pool)

A freeze frame from a surveillance video of Nancy Dunning, lower left, and a person of interest inside a Target
store the day of Dunning's murder is photographed during the Charles Severance murder trial at the Fairfax
County Circuit Court in Fairfax, Va., Friday, Oct. 16, 2015.
(AP Photo/Evan Vucci, Pool)

An image of a person of interest, that the prosecution claims is Charles Severance, is shown leaving a Target
store the day Nancy Dunning was murdered, Oct. 16, 2016, at the Fairfax County Circuit Court in Fairfax, Va.
 (AP Photo/Evan Vucci, Pool)