'Never turn your back on Adam': Nancy Lanza's chilling instructions to babysitter before he watched 'gifted killer who could not feel physical pain'

Ryan Kraft described Adam as very intelligent, quiet and introverted
Required extra supervision at school from a physical disorder which meant he could not feel pain
His mother would sometimes have to be summonsed to deal with him
A school psychologist was assigned to monitor Adam full time
When he was freshman at high school he was flagged to the school security chief
She withdrew him when he was 16 after ongoing disputes about his care
Nancy planned to move to North Carolina or Washington state so she could enroll him in another college
Governor implies that school gunman Adam Lanza killed himself and may have been stopped in his tracks before he could kill more people
Had multiple high-capacity magazines for assault rifle and two handguns