On Wednesday, as most of Phoenix was asleep, Murphy, the father of a 2-year-old girl and a baby boy born just two weeks ago, was gunned down in the shadows of a home by the type of criminal he tried to keep off the streets.
The shooting happened after Murphy responded Wednesday to what appeared to be a routine emergency call of a suspicious person near Indian School Road and 19th Avenue.
Moments later, shortly after 1:30 a.m., Murphy suffered multiple gunshot wounds in a confrontation with a man suspected of firing from a dark alcove.
Murphy's fellow officers scrambled to stop the bleeding as they rushed him in a patrol car to a nearby hospital.
He died about two hours later from what police described as severe blood loss from multiple gunshot wounds.