LOS ANGELES — The cardiologist who was with Michael Jackson when he collapsed is "in no way a suspect" in the pop singer's death, a spokeswoman for the doctor said Saturday after a three-hour interview with detectives.

Dr. Conrad Murray "helped identify the circumstances around the death of the pop icon and clarified some inconsistencies," spokeswoman Miranda Sevcik said in a statement. "Investigators say the doctor is in no way a suspect and remains a witness to this tragedy."

Police confirmed that they interviewed Murray, adding that he was cooperative and "provided information which will aid the investigation."

The statement said Murray rode in the ambulance and stayed at the hospital for hours, "comforting and consoling the Jackson family." It also said he has been in Los Angeles since Jackson's death, and plans to stay here until his cooperation is no longer needed.

Murray was with Jackson when the singer stopped breathing Thursday, and reportedly performed CPR until paramedics arrived.

News of the meeting came a few hours after the Rev. Jesse Jackson said the pop star's family is seeking a second autopsy of the pop icon because of unanswered questions about how he died.

"It's abnormal," he said from Chicago a day after visiting the Jackson family. "We don't know what happened. Was he injected and with what? All reasonable doubt should be addressed."

People close to Jackson have said since his death that they were concerned about the superstar's use of painkillers. Los Angeles County medical examiners completed their autopsy Friday and said Jackson had taken prescription medication.

Medical officials also said there was no indication of trauma or foul play. An official cause of death could take weeks.

The coroner's office released the body to Jackson's family Friday night. There was no immediate word on whether the second autopsy was being performed right away. Jesse Jackson described the family as grief-stricken.

"They're hurt because they lost a son. But the wound is now being kept open by the mystery and unanswered questions of the cause of death," he said.

One of Jackson's longtime lawyers was chosen to represent the family's legal interests, a person close to the situation said Saturday. Katherine Jackson, the singer's mother, selected L. Londell McMillan, who has represented Jackson in several cases, said the person, who requested anonymity because the matter is private.

Two days after Jackson died at a Los Angeles hospital, sisters Janet and La Toya arrived at the mansion Jackson had been renting. They left without addressing reporters.