Or Seattle. Two examples off the top of my head:

The cafe where a well-known Rails meetup happens had a multiple homicide recently. A mentally ill man ended up killing six people total. His family said "we could see this coming." http://healthland.time.com/2012/05/31/seattle-shootings-six-...

A mentally ill man literally axe-murdered another man (who he didn't know) two years ago a half-block away from where I live: http://thesunbreak.com/2010/11/24/mental-illness-drove-capit....

I saw a news report that the number of people applying for a gun license in Aurora after the shootings at the cinema went up quite a bit.

To me, as a non-American, that is quite scary. A guy kills and injures a lot of people and the reaction of the public is not "how could we have prevented this?" but "I need a gun so when this happens again I can kill the guy before he kills as many people!"

Scary and quite sad :(

I do not know if James Holmes is suffering from mental health issues and if they are the cause of his violent attack on the people of Aurora however I would suspect mental health problems are involved somewhere and perhaps this tragedy could have been averted had he had the proper help.