As the story behind the life of Sandy Hook shooter Adam Lanza continues to unfold, details of a dependent and antisocial person shed even more light on the demons the 20-year-old gunman faced.

A recent Associated Press interview with Lanza’s former barber said that as a teenager, Lanza would avoid speaking or looking at anyone and was always accompanied by his mother whenever he went for a haircut.

Stylist Diane Harty told the AP that cutting Lanza’s hair was a very long half an hour. "It was a very uncomfortable situation." She added that she never heard his voice, and that Nancy Lanza also hardly spoke.

Another stylist, Bob Skuba, said Adam would move only "when his mother told him to."

"I would say, 'Adam, come on.' He wouldn't move," Skuba said. "And his mother would have to say, 'Adam, come on, he's ready.' It was like I was invisible." He said Adam also wouldn't move from his chair after his hair was cut until his mother told him to.

"He would just be looking down at the tiles ... the whole time," Skuba told the AP.

Previous reports that attempt to put together a profile of the killer describe Lanza as intelligent, but remote.

Joshua Milas, a classmate who was in the technology club with Lanza, said that he was generally a happy person, but that he hadn’t seen him in a few years.

‘‘We would hang out, and he was a good kid. He was smart,’’ Milas, who graduated in 2009, told the AP. ‘‘He was probably one of the smartest kids I know. He was probably a genius.’’

In addition, the AP reports that several people who knew Nancy Lanza have described her as a devoted parent.

A recent Fox News interview with a Lanza family friend indicated that Lanza may have carried out the Sandy Hook shooting because his mother was planning to commit him to a psychiatric facility.

Joshua Flashman, 25, a lifelong resident of the area who was familiar with the mother's plans, told Fox News, “Adam was aware of her petitioning the court for conservatorship and (her) plans to have him committed."

Divorce paperwork released this week, obtained by the AP, indicated that Nancy Lanza had the authority to make all decisions regarding  her son'supbringing. The divorce was finalized in September 2009, when Adam Lanza was 17.