CBS Evening News | Blaec Lammers was convicted Friday of planning an armed assault, after his mother turned him in when she found a receipt for an assault weapon in her son's pocket.

Blaec Lammers was convicted Friday of planning an armed assault, after his mother turned him in when she found a receipt for an assault weapon in her son's pocket. The family's story demonstrates how difficult it is for many parents to get adequate medical care for mentally ill children. Jim Axelrod reports. Air Date: Jan 31, 2014