A 20-year-old Miami man was gunned down over the weekend in front of several people, including one witness that saw it all: a convenience store video camera.

On Nov. 14, Michael Beatty was shot to death in the street near NW 15 Avenue & 59th Street, just around the corner from a convenience store.

The graphic video footage shows startled customers scrambling for cover as a masked gunman carrying what looks like an assault rifle running after Beatty. The suspect appears to be shooting as he is chasing Beatty.

Another angle of the shooting captures the tail end of the crime as the suspect, a black male, jumps into a black 1999 Nissan Maxima that was driving down the street and was likely the getaway vehicle.

Police have not announced a possible motive in the shooting, but would say that Beatty was definitely targeted.

Beatty's family spoke Tuesday, asking any witnesses to come forward to help catch Beatty's killer.

"Everybody out there talking about, they his friend and 'that's my buddy' and this and that, but then you see him get shot down in the street like that and won't say nothing, how can you be that way?" said mom Stephanie Wimberly.

Anyone with information regarding the crime is asked to call the Miami Police Homicide Unit, at (305) 603-6350 or if you wish to remain anonymous, then contact Miami-Dade County Crime stoppers at (305) 471-TIPS (8477) or 1 (866) 471-8477.