I won't speculate on the shooters motives because it's way to early to know anything in this regard. Being a life long Coloradan. I will say we've had way more than our share of these mass shooting here!! I wish I had an answer for why people decide to do this type of thing!

My heart reaches out to the cop, the other nine people killed & their families who are the victims of this senseless tragedy!! May Gods blessing be with them to help them though these hard times!!