MIAMI -

Opening statements began Monday for the first of five men on trial for allegedly abducting a teenage couple at gunpoint, raping and killing one and leaving the other for dead.

Nelson Portobanco testified that he did not see a group of men rape his girlfriend, Ana Maria Angel, but he heard them take turns with her in a pickup truck.

Victor Caraballo and the other men have been charged with first-degree murder, attempted first-degree murder, armed sexual battery by multiple perpetrators, and two counts each of armed kidnapping and armed robbery for the events that took place April 27, 2002.

Portobanco and Angel were both 18-year-old high school seniors at the time. They were walking back to their car on South Beach after a date when, Portobanco said, the men jumped the couple and pushed them into the pickup truck. He then said they drove north, gang-raping Angel while he was ordered to keep his head down.

"She asked them to stop," Portobanco testified.

Portobanco said he was pulled from the truck and stabbed at least 10 times. Pictures on display showed his wounds.

"I was trying to pretend I was dead," he said.

Police said Angel was driven farther and shot to death. Her body was found near Interstate 95 in Palm Beach County.

Caraballo is the first of five Orlando-area men to stand trial for Angel's abduction, rape and death.

All five men have pleaded not guilty.