Keep your eye on him. That’s what Adam Lanza’s mother told a former babysitter, according to a report from CBS News. The man, who now lives in California, said the disturbed child’s mother told him to “never turn my back” on the then 9- or 10-year-old Lanza. Police say that Lanza, 20, killed 26 people at a Connecticut elementary school and his mother before shooting himself Friday. A former director of security at Newtown High School, which Lanza attended, also revealed that officials feared that he “could hurt himself” and assigned him a school psychologist as a freshman.