Where did she get the guns http://www.cbsnews.com/stories/2007/10/12/national/main3360501.shtml Mom Charged In Columbine-Style Plot In Pa. The mother of a 14-year-old who authorities say had a cache of guns, knives and explosive devices in his bedroom for a possible school attack was charged Friday with buying her son three weapons. Michele Cossey bought her home-schooled son a .22-caliber handgun, a .22-caliber rifle and a 9 mm semiautomatic rifle, authorities said. CBS News correspondent Maggie Rodriguez reported that officials knew the young suspect's motive: he felt bullied by the students at Plymouth Whitemarsh.... Acting on a tip from a high school student and his father, police on Wednesday found the rifle, about 30 air-powered guns, swords, knives, a bomb-making book, videos of the 1999 Columbine attack in Colorado and violence-filled notebooks in the boy's bedroom, Montgomery County District Attorney Bruce L. Castor Jr. said. Cossey, 46, of Plymouth Meeting, bought the rifle, which had a laser scope, at a gun show Sept. 23 and provided police with a receipt, investigators said in court papers. The teenager said the two .22-caliber weapons were stored at a friend's house.