[mouse1]

http://extras.denverpost.com/homicides/2015/

http://dailycaller.com/2015/04/21/connecting-the-dots-on-rising-gang-violence-in-denver/

http://www.fool.com/investing/general/2015/11/21/crime-rates-are-soaring-in-seattle-and-denver-is-m.aspx

http://www.9news.com/news/crime/crime-rose-in-every-denver-neighborhood-last-year/50176654

Seems like you spoke too soon. Maybe there is an increase in crime and drug use (legal or illegal)

[Ken H]

From your first link =>

Denver’s jump in homicides followed a national surge. Still, its projected 2015 murder rate was lower than average among the nation’s 30 largest cities.