Rapper Mo3's Alleged Killer Shown in Photo Carrying Gun on Freeway

Rapper Mo3's alleged killer was captured on surveillance footage carrying a gun as he appears to run away from the murder scene.

The Dallas Police Department released the picture late Thursday night in hopes the public can help them identify the male suspect, whom cops say was seen driving in a possible 2014 or 2015 black Chevy Camaro.

Cops are asking anyone with information to contact the Dallas Police Homicide Unit. TMZ broke the story ... Mo3 was being tailed moments before he was shot and killed in his hometown.

The rapper had left a friend's house before he noticed he was being followed from the home to a gas station.

The chase ended up on the I-35 and, in an attempt to lose the other vehicle, Mo3 tried to get around traffic but ended up crashing. We're told Mo3 got out of his car and ran for his life before he was gunned down in broad daylight.