Photos released in good Samaritan's murder

HOUSTON The deadly shooting happened just before midnight Thursday at a Chevron gas station on Beechnut and the West Loop. Police say the suspect was carrying a gun and had little to say when he approached a woman standing in line outside the gas station window. Standing behind her was a man who decided to come to her rescue and in the end, lost his life.

"When I got home, I was going to bed and I heard a gunshot," said Morgan Gerson.

She now knows that gunshot came from the gas station near her house. But what's shocking for her and others is the tragedy that happened.

Police say a man carrying a pistol began robbing a woman outside the gas station at the cashier window, grabbing her purse.

Investigators say that's when an innocent bystander intervened. Police say that suspect turned the gun on him and shot the victim in the chest, killing him.

"This individual put his life on the line to help the female complainant in the robbery," said HPD Homicide Detective Mark Coleman. "This is something he didn't have to do, but he did it and obviously it was very dangerous."

"I'm actually shocked. I'm blown away," said Gerson. "Just hearing about it gives me the chills, now that I think about it."

Police say the cameras captured the whole thing, including the suspect's face when he walked inside the convenience store before the shooting and bought a beer.

"The suspect is obviously armed and very dangerous," said Det. Coleman. "I do think it's a matter of time before we catch him."

Customers who frequent the gas station say their hearts are heavy and they offer sympathy to the family of victim who lost his life trying to help someone else.

"That just breaks my heart my heart. He's a hero. He's a true hero," said customer Dennis Rethwisch.

The suspect is described as a bald black male in his 20s to 30s. He was wearing a white cap and a black shirt with white stripes across the chest.

Police are still looking for any witnesses. If you have any information, you're being asked to call authorities or Crime Stoppers at 713-222-8477.