TIMMINS, Ontario, March 14 (UPI) -- Authorities in Ontario province were investigating the prison cell death of a man who admitted killing a 12-year-old girl who disappeared almost 40 years ago.
Barry Manion, 61, of London died early Friday at the correctional facility near Timmins, the Canadian Broadcasting Corp. reported Saturday. His body was found in his cell about 5 a.m.
"The nature by which Mr. Manion died is still subject to investigation," said Ontario Provincial Police Constable Marc Depatie. "We do not speculate on the cause of death until such time as a thorough post-mortem examination and the results from that examination have been made available to the Ontario Provincial Police."
Manion was sentenced this week to life in prison with no possibility of parole for 10 years, after pleading guilty to second-degree murder in the 1970 disappearance of his distant cousin, Katherine May Wilson, in Kirkland Lake. Her body has never been found.
Manion, who lived in Kirkland Lake when the girl vanished, was arrested in January. He told investigators he had offered Wilson a ride home, but instead took her to a wooded area because he wanted to have sex with her.
Manion said she refused and ran away, but he caught her and choked her to make her stop screaming. He said he left her body in the woods after he killed her.