My belief is that if there was any proof the shooter to be a Conservative we would have about it heard by now. The press is desperate to lay this on the shoulders of the Right so if they had something we would know it.
But secondly, the chances the guy is a Liberal seem so great because how could any 22 year old survive without being exposed to Liberal indoctrination from public schools and college these days? Therefore, anyone in their right mind, could only conclude that this wacko is indeed a Left-wing loon. Sorry but the probability is just too great to deny such odds.