Not sure if this has been posted.
http://www.kpho.com/story/20119833/missouri-police-foil-mass-murder-plot-at-twilight-screening-walmart#.UKaqJc_ENsY.twitter
A 20-year-old man is accused of buying assault rifles and more than 400 rounds of ammunition in a plot to commit mass murder at a Twilight screening and a Missouri Walmart.
Blaec Lammers' plot was foiled because his mother alerted police, according to court documents.
The woman told police her son had bought weapons similar to those used by a gunman inside an Aurora, CO, movie theater showing the premiere of the latest Batman movie. Twelve people died and 58 were injured in Colorado.