Shane Spiller helped convict child killer Derek Ernest Percy.
Photo: Craig Sillitoe
Derek Ernest Percy
Derek Percy leaves the Supreme Court.
Photo: Simon O'Dwyer
Percy as he looked in 2005.
is suspected of killing (inset top) Simon Brook, 3, (middle)
Marianne Schmidt and Christine Sharrock, 15, and (bottom)
Jane, Grant and Anna Beaumont.
The Beaumont children
Derek Percy is driven into police headquarters in St
Kilda Road August 30, 2007,
for interrogation by homicide detectives.
Photo: Jason South