Derek Percy Could be Forced to Give Testimonyon December 20, 2012 in Alleged Serial Killers by Brian Combs
The Victorian Court of Appeal ruled earlier today that a certificate of immunity should be offered to suspected serial killer Derek Percy to compel his testimony regarding the 1968 disappearance of seven-year-old Linda Stilwell.
Linda’s mother, Jean Priest, has been fighting to have Percy testify for years. Today’s ruling will cause an inquiry into Linda’s death to be reconvened. Percy will likely be granted immunity for his testimony.
Percy murdered 12-year-old Yvonne Tuohy in July 1969, but was found not guilty by reason of insanity in 1970. He has been indefinitely detained due to the high risk that he would kill again should he be released.
Ironically, had he been found guilty of the single murder, he might well have finished his prison sentence by now. All indications are that Percy will die in custody.
The appeals court also found that the coroner should take into account recent medical evidence regarding Percy’s short- and long-term memory. The ruling of not guilty by reason of insanity in 1970 turned on an alleged memory problem Percy had or has, which could also make any new testimony he gives unreliable.
It has previously been established that Percy was in the same area as Linda Stilwell on the day of her disappearance. Percy is also suspected in a number of other murders and disappearances, include those of the Beaumont children, the Wanda Beach murders, the murder of Simon Brook, and the murder of Alan Redston.