Police video recorded the night a young man was fatally shot in an Arkansas patrol car while his hands were cuffed behind his back hasn't resolved questions about whether he shot himself in the head as officers said.

Police released footage to The Associated Press and other news organizations under a Freedom of Information Act request this week. They released more footage Friday amid questions about why the first batch of video appeared to end before the officers found Chavis Carter, 21, slumped over and bleeding in the back of a patrol car on July 28 as described in a police report. Police have said officers had frisked Carter twice without finding a gun.

Police said the second batch of video occurred after Carter was discovered, but that footage wasn't immediately available in its entirety.

"There's still nothing in there about what actually happened with Chavis," Benjamin Irwin, a Memphis-based lawyer representing Carter's family, said Friday before the second batch of video had been released.

The internal police investigation into the shooting has not yet been completed. The FBI has said it is also monitoring the case.

Sgt. Lyle Waterworth, spokesman for the Jonesboro police, said Friday morning that he hadn't yet seen the video his department released the night before. Hours later, amid questions about the dashboard camera video that had been released, he agreed to release some more that he said occurred after Carter was discovered.

No other dashboard camera video exists, he said, but additional video was retrieved during a forensic exam of Carter's phone. He said that remains part of the active investigation and wouldn't be released yet.

To explain stops in the video, he said the camera system in both patrol cars is controlled automatically with an emergency light bar and siren system.

"After the light bar is turned off the camera system ends its recording," Waterworth said in a statement. He didn't respond to email and phone messages seeking further comment.

The second batch of video begins as what looks like light from a police car flickers on a stretch of road. A dog barks and a white SUV turns around a little ways down the street.

An unseen man curses shortly after he says, "He was breathing a second ago." An ambulance pulls up and someone, perhaps the same man, says, "I patted him down. I don't know where he had it hidden."

Later, someone instructs the others to leave everything as it is.

The rest of the video wasn't immediately available Friday night.

Police waiting for autopsy report

The first batch of video begins when an officer pulls up to a white pickup truck on a dark street in Jonesboro, about 210 kilometres northeast of Little Rock. He talks to the driver, Carter and another passenger. Police say the officer stopped the truck after someone reported a suspicious vehicle driving up and down the road.

Another officer arrives and searches Carter, who police say initially gave a different name. The officer doesn't appear to find a gun as he pats Carter down, though something else falls to the ground as the officer shines a flashlight toward Carter.

The officer leads Carter, who is not yet handcuffed, toward the patrol cars and then out of the frame. A police report said Carter was placed in the second patrol car without handcuffs, though the video doesn't show that.

Meanwhile, the other officer searches the driver and remaining passenger, who then stand in front of the first patrol car. The officer who searched Carter asked them where the rest of the marijuana was because he found some on Carter.

The driver and other passenger are handcuffed and led out of the frame, too.

Eventually, they appear without handcuffs and the officers let them leave.

They keep Carter, who had an arrest warrant out of Mississippi. Court records show it had to do with a drug-related case.

The video ends after the truck drives away and the officers talk about leaving.

"See ya later," one of the officers says. It sounds like he opens the car door and then the audio cuts out. The blue lights of the police car continue to flash for several seconds, lighting a nearby bush.

Carter was shot in the head, though police have refused to say where.

Police said in a statement that they're still waiting on a complete autopsy report, forensics and toxicology results from the state crime lab.