... then kills her.
'I killed my mom with my .22. I don't know why I did it': Chilling 911 call reveals 13-year-old boy admitting he tried to rape and then shot dead his mom 'for taking away his Call of Duty video game''
http://www.dailymail.co.uk/news/article-2319064/Noah-Crooks-Chilling-911-reveals-13-year-old-boy-admitting-tried-rape-shot-dead-mom-taking-away-video-game.html