Adam Lanza 'Burned Himself', Mother Warned Babysitter 'Never Turn Your Back On Him'

As police continue to gather clues to learn more about the psychological profile of Adam Lanza, several friends of his late mother have come forward to provide more information about her son. The 20-year-old committed the horrifying crime of killing his own mother, twenty children and five other adults before turning the gun on himself in Newtown, Connecticut last Friday, 

Friends of Nancy Lanza, 52, have shared strange incidents about Adam they learned about through conversations with his late mother.

Nancy expressed concerns about her younger son less than a week before he would launch the attack where he would kill her first, before 25 others. Nancy confessed she thought she was "losing" Adam because he had a habit of inflicting pain on himself with a cigarette lighter.

"Nancy told me he was burning himself with a lighter. In the ankles or arms or something," an anonymous insider told New York Daily News. "It was like he was trying to feel something. She just looked down at the glass and said, 'I don't know. I'm worried I'm losing him'," the friend recalled of their conversation at a local bar in Newtown.

"She said it was getting worse. She was having trouble reaching him. She looked disturbed. She was looking down at her glass and kind of talking slowly," the friend added. "You have to know Nancy to know how weird that was," he said. "She was just always so full of life.

An ex-babysitter also recollected about an odd conversation he had with Nancy after he was hired to watch Adam when he was just 9 or 10 years old.

Ryan Kraft told KCAL-TV in Los Angeles that when he was 14 or 15 years old and lived a few doors down from the Lanza family, Nancy warned him to watch Adam "at all times" and to never turn his back on him, "even to go to the bathroom."

"His mom Nancy had always instructed me to keep an eye on him at all times, never turn my back or even go to the bathroom or anything like that," said Kraft who now lives in California. "Which I found odd but I really didn't ask; it wasn't any of my business. But looking back at it now, I guess there was something else going on."

Kraft admitted that when he first heard about the shooting and that Lanza was involved, "I just couldn't think for a little while. I was shaking." He described Adam as "quiet, very intelligent and introverted" while describing moments of hyper-focus. "Whenever we were doing something, whether it was building Legos, or playing video games, he was really focused on it. It was like he was in his own world."

Most recently, Nancy began telling friends that she bought guns and was practicing at a shooting range as a new hobby.

As fate would have it, her son Adam would take three of his mother's high-powered weapons to kill her first in her home on Friday, Dec, 14 then to the Sandy Hook Elementary School to commit the murders.

All three of the guns that were found on Adam were owned and registered by his mother. They consisted of a pair of handguns and a .223-caliber Bushmaster rifle, his primary weapon.