A Broomfield man was convicted of first-degree murder Friday and sentenced to life in prison without the possibility of parole.

Matthew Britton, 34, was convicted in the shooting death of Kobe Wiley last year inside Britton’s Broomfield home.

Wiley was shot five times in the back of the head, once at close range, according to the Broomfield County District Attorney’s Office.

“This was an act of cowardice,” Chief Deputy District Attorney Patrick Costigan told the jury during closing arguments. “He ambushed an unarmed man out of jealousy.”

On Sept. 19, 2015, Britton’s estranged girlfriend, Niki Adkins, went to Britton’s home to pick up their 5-year-old daughter. Adkins and Wiley, 54, planned to take the girl to the zoo.

When Adkins and Wiley arrived Britton was sitting on a sofa with a gun in his waistband, prosecutors said.

“He shot Wiley multiple times soon after the two arrived at the house,” a DA’s media release said.

The Broomfield County jury deliberated for about five hours Friday before returning a guilty verdict.