Westwego, LA, police officer Michael Louviere was shot in the head and killed while stopping to help an injured woman, who also died, in Marrero Friday morning. He was a U.S. Marine who served in Afghanistan before joining the police force in July 2015, according to Westwego Police Chief Dwayne Munch.

"This was a cold-blooded murder," Munch added, reports the Times-Picayune . 

According to Munch, Louviere ended his shift at 6 a.m. Friday and was headed home on Ames Boulevard when he came across a traffic accident near the intersection of Barataria Boulevard. He was in full uniform when he was shot, Munch said.

The injured woman, now identified as Holt's pregnant wife Simone Veal , called police at 6:30 a.m. to say she had been shot, reports WGNO . A domestic incident had reportedly resulted in her being shot, and while driving away she ended up hitting another car, where Louviere stopped to help with the traffic accident, reports WVUE .

As Officer Louviere tended to the injured woman, a male subject approached him from behind and shot him in the back of the head, killing him, reports ODMP.org .

Jefferson Parish Sheriff Newell Normand named Sylvester Holt, 32, as a person of interest in the shooting. He reportedly fled the scene on foot. After multiple agencies searched for him, a man who may be Holt was reportedly found threatening to jump from the Crescent City Connection bridge in New Orleans.

Officer Louviere was 26. He leaves behind a wife and two young children.