This was a clear effort to take innocent life. The theater was NOT a government facility. The behavior of directing pain at ordinary people via protests, occupy, etc, is far more in keeping with liberals.
Many have remarked how the speeches of one of the villains in the Batman movie reminded many people of Obama.
Conservatives tend to see the taking of innocent life as wrong. This is why conservatives tend to be pro life, against abortion, against euthanasia, against eugenic ethnic cleansing, etc.
Clearly, the motives and the modus operandi here are far more typical for liberal/socialist/communist nut jobs.