Published: Jan 20, 2014 6:59 PM EST
Updated: Jan 21, 2014 11:17 AM EST

EAST NAPLES, Fla. - A man was found dead of a gunshot wound at around 3:30 a.m. at 5362 Holland Street on Monday.

The Collier County Sheriff's detectives have identified the victim as Christopher Corey, 25, who was pronounced dead at the scene.

Neighbors living right next door say they found Corey, dead in his home, with a gunshot wound. 

They tell WINK News they heard two men arguing, a door slam, and then watched as a man ran to his car and took off.

Friends call him a "stand up" guy who didn't deserve this. They say he was a former Marine, proud of his service.

This is an ongoing investigation and anyone with information is asked to call the Collier County Sheriff's Office at 239-252-9300 or to remain anonymous call Crime Stoppers at 800-780-TIPS (8477)