Philadelphia police have identified suspects and released a video showing a shooting on an El train in West Philadelphia.

Two people were wounded - one critically - when a Chicago Bulls fan got into an argument with two male teenagers aboard a SEPTA train after the Sixers lost to the Bulls Wednesday evening.

Police on Friday identified the teens as brothers Eric Early and Matthew Early, both 18 and from the 100 block of South 49th Street.

Police say one of the teens fired a shot through the open door when the train stopped at the 46th Street station, hitting the 36-year-old Bulls fan in the stomach and striking another person in the thigh.

A police spokeswoman said she didn't know which brother pulled the trigger.

The video, released Thursday evening, shows the brothers riding the El and conversing. As the train pulls into the station, they step onto the platform; one then turns and fires a gun into the train. (WARNING: The video embedded here shows the shooting; use discretion when viewing)

Police described the shooter as black, 16 to 19 years old, and wearing a blue puffy vest over a gray hooded sweatshirt and black pants with a white stripe. He was thin, had a dark complexion and no facial hair.

The second suspect was described as black, 16 to 19 years old, 5 feet 11 inches to 6 feet tall, and wearing a gray hooded sweatshirt and blue jeans. He was also thin, had a dark complexion and no facial hair.

Anyone with information about the shooting can call Southwest Detectives at 215-686-3183. Tipsters can also call the department's confidential tip line at 215-686-8477 (TIPS) or send a text message to 773847 (PPDTIP).