A shooting outside an east-side burger shop that left one Indianapolis man dead and another injured and facing a murder charge started because they bumped into each other in line, court documents said.

On Aug. 4, Joseph Aikens, 32, was shot and killed outside Big Dan's Hamburgers in the 5900 block of Massachusetts Avenue.

The man accused of shooting him, 28-year-old Jamar Myers, was wounded in the altercation but says he doesn't remember anything between the bump in line that sparked the incident and waking up at the hospital.

According to court documents, the investigation began shortly after 2 a.m. when officers from IMPD's Northeast District were called to a fight and shooting at Big Dan's.

Upon arrival, police and medics found Aikens suffering from a gunshot wound in the parking lot of the business. He was pronounced dead at the scene just minutes after first responders arrived.

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Aikens' girlfriend and other witnesses told police that Aikens got into a fight at the restaurant with a man later identified as Jamar Myers. Witnesses said the fight started because Myers bumped into Aikens while he was standing in line.

The two men began shoving each other, and that escalated into a brawl, witnesses said.

Security footage of the altercation shows Aikens and his girlfriend entering Big Dan's and meeting up with three friends. After the initial bump in line, the video shows a shoving match, followed by one of Aikens' friends stepping in and punching Myers into the Big Dan's window.

Court documents said the video shows Myers shoving Aikens to start the physical altercation. Soon, Big Dan's employees break up the fight and escort everyone outside.

Once outside, the video shows Myers reaching under the front seat of a van in the parking lot and holding a handgun as he walked back toward the business. At the same time, Aikens' friends walk back to their car, a white sedan.

Court documents said when the two men made eye contact, they exchanged punches before Myers shot Aikens at close range.

Myers follows Aikens as he runs off, but his pursuit ends when someone not visible on the security footage shoots Myers. Detectives viewed the security footage from multiple camera angles and saw muzzle flash coming from the driver's side of the sedan that Aikens' friends were in.

Police noted that the muzzle flash corresponded with Myers being shot on camera. A search of the scene led to the discovery of five shell casings where the sedan had been parked.

Aikens ran around the building before collapsing near the passenger side of his vehicle. Myers, who was shot in the arm, went to Community East Hospital for treatment before being transferred to Eskenazi Hospital.

At the hospital, Myers told police he was at Big Dan's with his wife and mother when the fight began. He said that he tried to apologize after bumping into Aikens and that the last thing he remembered was "getting whaled on" by three guys, court documents said.

He told police he did not remember shooting anyone, how he got to the hospital or how he got shot. When police told Myers what happened in the security footage, he grew emotional.

Myers is quoted in court documents saying, "Man, my life is gone if that happened, man. My kids, man." After restating that he did not remember the shooting, Myers declined to speak any further.

According to online court records, Myers has been charged with murder and carrying a handgun without a license.

Call IndyStar reporter Justin L. Mack at 317-444-6138. Follow him on Twitter: @justinlmack.