Nancy Lanza, who was killed by her son Adam Lanza in December prior to the shooting rampage at Sandy Hook Elementary, told friends she'd found the sinister pictures -- including one of a mother clutching a child and a rosary while being shot with blood flying everywhere -- but wanted to think over how to broach the topic with her son.
The New York Daily News said it obtained hundreds of Nancy Lanza's emails to friends. In several, she describes a genetic disorder that killed her grandfather, infected her and, she feared, her son, too. She identifies Adam Lanza as having Asperger's syndrome and a sensory perception disorder that made him unable to feel pain but recoil at physical touching.
The emails also describe Adam Lanza as in thrall of his uncle, Nancy's brother, a New Hampshire police officer and retired Green Beret.
"I really miss having my brother right next to me. I always felt so safe that way," Nancy Lanza emailed her friend, Marvin LaFontaine. "I don't know if there is a name for the kind of training the Green Berets get ... they are simply trained to kill."
Notable deaths of 2014 [PHOTOS]