AUBURN HILLS, Mich. - Police released a copy of a videotape Tuesday showing a man who investigators believe hurled a chair into the crowd during the brawl at the end of the Pistons-Pacers game.

Police asked the public to help identify him.

"The video is the best picture we have of the suspect at this time," Auburn Hills police Lt. James Manning said in a statement. "The video shows the suspect throwing a glass of liquid prior to throwing the chair. The video does not show the suspect actually throwing the chair."

Oakland County prosecutor David Gorcyca has said the only possible felony charge in the brawl could be against the chair-thrower. He said other charges most likely would be for misdemeanor assault and battery.

Also Tuesday, two fans sued the Pacers and players Ron Artest, Stephen Jackson and Jermaine O'Neal, contending they were injured in Friday's brawl.

Lawyers for John Ackerman and William Paulson filed suits in Oakland County Circuit Court in Pontiac. They are seeking unspecified damages.

Ackerman, 67, says he was hit by O'Neal and then knocked unconscious by the thrown chair. His suit also names Palace Sports & Entertainment Inc., which operates the Pistons' arena. Paulson, 26, says Artest and Jackson assaulted him.

Manning said the criminal investigation could take two to three weeks. Investigators are reviewing videotapes and interviewing witnesses. Artest, who has been suspended for the season, and other Pacers had not been interviewed, Manning said.

Another fan, John Green, has been identified as the one who threw a cup that hit Artest before the Indiana forward charged into the stands. Gorcyca recognized Green - a former neighbor - after repeatedly watching footage of the brawl.

Once Artest was in the stands, Green grabbed him from behind and sucker-punched him, the prosecutor said.

Green, a 39-year-old contractor, told reporters Monday that it may have looked like he threw the cup, but he didn't.

"I wish the whole thing didn't happen," he said. "It was awful, it was ugly."

Green's attorney, Shawn Smith, said his client became involved in the brawl only when he saw Artest hitting a smaller man. Green also said Artest kicked him in the shin "a couple of times."

"We have no comment on who threw the cup, it's irrelevant," Smith said. He said fans shouldn't throw things, "but is it a criminal offense? I don't think so."

During an appearance Tuesday on ABC's "Good Morning America," Green described himself as a respected businessman with a wife and two children. He said he was not drinking Friday night and that Artest was "being a thug."

"I don't go around breaking the law," Green said. "If they have found that I broke the law, I'll pay the price."

But Gorcyca said Green was on probation for his third offense of driving under the influence. Green's record also includes convictions for carrying a concealed weapon and check fraud, according to the Michigan Department of Corrections' database.

Pistons chief executive Tom Wilson said Green is a season-ticket holder and will be banned from The Palace.