At this point in time, the Colorado police haven’t released the shooter’s motives.
The Latest: Mayor hints at motive in Colorado clinic attack
The man who police say attacked a Planned Parenthood clinic in Colorado had lived part of the time in a cabin with no electricity or running water in the North Carolina mountains.
His neighbors in Black Mountain said Robert Lewis Dear kept mostly to himself. But James Russell said when Dear did talk, it was a rambling combination of a number of topics that didn’t make sense together and he tended to avoid eye contact.
Two topics Russell said he never heard Dear talk about were religion or abortion.
http://www.sfgate.com/news/crime/article/The-Latest-Police-ID-clinic-gunman-as-Robert-6661583.php