Convicted sex offender Martin Tremblay says he was away from his Richmond home the night a 17-year-old girl died of a lethal dose of drugs and alcohol inside.

Martha Hernandez went into medical distress and died in Tremblay's home in the early morning hours of March 2. Her friend Kayla Lalonde died the same morning on the street in Burnaby, also from drugs and alcohol.

CTV News found Tremblay on Pender Island, where he has been living the past few weeks. A girl answered the door, and called for "dad."

Tremblay refused to speak on camera, but agreed to answer questions over the phone. The 44-year-old said he was away from home the night of Hernandez's death.

"I come back, she pass away," he said. "I'm not there all night long. I don't stay there all night long."

He also denies supplying any drugs to the teenager.

"She get the drug already, early on the daytime, before she come in the house," Tremblay said.

Tremblay said he's been questioned by the RCMP, and was asked if he would take a lie detector.

"I said no problem, any time," he said. "I'm waiting for that next week, I'm not worried about it."

Earlier this week, some of Tremblay's former victims spoke to CTV. One woman, who by law cannot be identified, said she wanted to warn young girls of Tremblay's past.

"I was unaware he was actually drugging me," she said.

"One thing everybody should know is that he pretends to be everybody's dad."

Tremblay was convicted in 2003 on five counts of sexual assault. His victims said he befriended them, drugged them, and videotaped himself having sex with them. He was released in 2004 after serving just over a year in prison.

Asked if he regrets his past offenses, Tremblay replied "Of course I do."

He also said he no longer gives drugs to girls.

"[Expletive] no. I don't even have [expletive] drugs in my house. The cops coming in my house, she was inside my house four days straight, never found drugs in my house because there was no drugs in my house."

CTV News has learned Tremblay packed up and left the island since the interview.

With a report from CTV British Columbia's Lisa Rossington