It is indeed a sad thing that after a spree shooting there is inevitably some speculation about the offender and the autistic spectrum, regardless of whatever the evidence might indicate. This is why we need researchers like Associate Professor Andrew Whitehouse from the Telethon child health research institute in Western Australia to write clear and rational articles debunking the myths about the autistic spectrum.
Whitehouse, Andrew (2013) Not autistic, but human. The Conversation. January 7th 2013.