O.J. Simpson chatted and shook hands Thursday with one of the memorabilia dealers he's acccused of robbing when the two met in a courthouse hallway in Las Vegas.

The former pro football star and Bruce Fromong, who testified against Simpson in his ongoing trial for armed robbery and kidnapping, both said they were willing to let bygones be bygones.

Simpson and Fromong had a long business and personal relationship before the alleged robbery.

"It was a set of events that happened and things just rolled and everything just happened," Fromong said of the Sept. 13, 2007, hotel room confrontation in Las Vegas.

"It was the moment, that's all it was, one bad moment," Simpson said after smiling, chatting and shaking hands with Fromong.

Fromong and his wife, Lynette, said they were at the courthouse to watch the trial, which resumed Thursday with Simpson lawyer Gabriel Grasso cross-examining Charles Cashmore, a man who played a small role in the alleged robbery but testified that he saw two guns in the room.

The Fromongs left the courtroom after meeting with prosecutor Chris Owens and a Clark County district attorney's office investigator.

In audio recordings secretly made of the confrontation, Simpson is heard expressing surprise to find Fromong in the hotel room.

The jury has heard from several witnesses that a gun was displayed, orders were barked, and photos, ties and footballs were swept up off a bed and hauled away.

The nine women and three men must decide whether Simpson knew guns were in the room, and whether the confrontation was a criminal scheme or an effort by Simpson to retrieve stolen family photos, heirlooms and mementos.

Cashmore, 41, originally faced the same charges as Simpson and co-defendant Clarence "C.J." Stewart, but struck a deal with prosecutors that could see him receive probation or up to five years in prison.

Simpson and Stewart have pleaded not guilty to 12 charges, including kidnapping, armed robbery, coercion and assault with a deadly weapon. They face up to life in prison with possibility of parole if convicted of kidnapping, the most serious charge.

With files from the Associated Press