Armed Amazon employee stops shooter who opened fire at Arizona facility: 'good Samaritan'

An armed employee at an Arizona Amazon facility helped stop an active shooter by firing on him after he shot and wounded a fellow employee in the parking lot.

Murphy, police said in a statement, did not work at Amazon but had "jealousy issues" regarding his girlfriend who worked at the facility but was not present at the time. Andrew Mark Miller is a writer at Fox News. Find him on Twitter @andymarkmiller and email tips to AndrewMark.Miller@Fox.com.

Police say that Murphy intended to locate an unknown male worker at the facility that he only knew by first name.  When Murphy attempted to enter the facility he was stopped by a worker who noticed it was "strange" for Murphy to be there. Murphy shot that worker multiple times after an argument ensued.

An armed Amazon worker on the scene saw what was unfolding and police say he pulled out his gun and fired at Murphy, wounding him.