The first witness called Tuesday was Richard Senneff, one of the Los Angeles County paramedics who responded to the 911 call from Michael Jackson's home on June 25, 2009.
Senneff mostly repeated the testimony he gave as one of the first witnesses in the Murray trial, describing how he initially "thought perhaps this was a hospice patient."
"He looked like someone who was at the end stage of a long disease process," he said.
"No, no, this just happened," Murray told him, Senneff said.
Jackson was not breathing and appeared to be dead, he said.
An AEG lawyer asked him during cross-examination if he thought Murray was not telling him the truth.
"I don't even go there," Senneff said. "I'm not worried about that."
Senneff's testimony is important to informing the jury about the circumstances of Jackson's death, but the drama that filled the Murray courtroom was not duplicated.
In fact, humor sometimes emerged. Panish even asked Senneff whether he had ever rescued a cat.
"I have not rescued a cat," Senneff, who is also a firefighter, joked. "I rescued a dog that was lying in the street."
He also shared the ironic story of the next emergency he responded to after leaving Michael Jackson at the UCLA Medical Center's emergency room.
His ambulance was called to a west Los Angeles apartment to help an elderly Russian woman, Senneff said.
"When she heard the news on TV that Michael Jackson had died, she fainted," he said. She suffered a minor head injury in her fall.
"She was just deeply emotional when we took her to the hospital," Senneff said.
Martinez will return to court Wednesday to resume his testimony, but the trial will break early so a juror can attend a funeral in the afternoon.
A medical examiner from the Los Angeles County Coroner's office is expected to take the stand Thursday. No court is scheduled for Friday.