VANCOUVER - A "deviant" sexual offender who has spent his entire adult life in prison has been rejected yet again for parole.

His name was Adam Laboucan when he became Canada's youngest dangerous offender for sexually assaulting a three-month-old boy at the age of 17 -- but he's since changed his name to Tara Desousa.

In the dozen years since the former Quesnel, B.C., man has been in prison he's been caught prostituting himself to other prisoners, using drugs, threatening to kill a female guard, found with a homemade knife and was stabbed by another inmate.

Of particular concern to the board was Desousa's confession to killing a three-year-old child in a fit of anger when he was just 11 years old. He was never criminally charged.

Since his last parole board review in 2008 Desousa has married a fellow inmate, but parole documents say he now wants a divorce and hasn't seen his husband since the man's release in 2009.

In a written decision released today, the parole board panel refuses Desousa's release, saying a complex set of risk factors related to his gender identity, impulsive behaviour, violence and sexual deviance puts him at high risk to reoffend.