Video:2 Cops ambushed at Walmart in Arizona

ARIZONA - This week the Chandler Police Department released never before seen surveillance footage of the April 23, 2016 Chandler Walmart shooting incident. Two police officers were ambushed by 24-year old Mitchell Oakley when responding to a trespass call at the store. Oakley opened fire on officers Joshua Pueblo and Daniel Colwell. Mitchell Oakley was killed by officer Colwell.