Houston—Dr. Conrad Murray was Michael Jackson's personal physician and was perhaps the last person to see him alive.
"He has just lost a patient, he's lost a close friend, he's devastated by that," said Matt Alford, Murray's Houston based attorney.
Rumors indicate Jackson make have died as a result of a prescription drug addiction. And there are allegations that Dr. Murray gave Jackson a shot of Demerol just hours before the singer collapsed and died.
"Dr. Murray never prescribed Demerol, never administered Demerol, never saw him-- Michael Jackson take Demerol. And that goes as well for Oxycontin." said Ed Chernoff, he also part of the legal team representing Murray.
On Saturday, both Dr. Murray and Chernoff sat down with Los Angeles Police Departmen investigators. Dr. Murray was asked to recall the hours leading up to the pop star's death.
"He came in to check on him he was non-responsive, he did have a faint pulse, but he wasn't breathing," said Alford his client told authorities.
Dr. Murray has known Jackson since 2006, but was only recently hired by the concert promoter heading up Jackson's upcoming world tour.
On Thursday, the doctor was with the singer at his rented mansion in Southern California. His attorney stresses Dr. Murray did everything in his power to save his friend and patient.
"Dr. Murray placed one of his hands behind Mr. Jackson's back to support him on the bed, he then compressed the chest with his free hand to create the circulation," said Alford.
He said his client performed CPR on Jackson for more than 20 minutes before help arrived.
"Although he knew how to get to Mr. Jackson's house, he didn't know the physical address. There was no phone, there was no landline in Mr. Jackson's bed where 911 would know where the call was coming from," said Alford.
Security guards at Jackson's rented mansion called 911. Dr. Murray rode in the ambulance with Jackson to the hospital. His attorney said, the doctor went in the hopes of helping emergency room doctors diagnose Jackson's condition.
"To his knowledge Michael Jackson has no medical aliments that would have brought about this sudden death," said Alford.
An autopsy revealed Jackson died from cardiac arrest. The Jackson family is having a second autopsy performed. Meanwhile, the pop star's family wants to know what role if any did Dr. Murray play in pop star's death.
"Dr. Murray is grieving because he lost a close friend, but he understands the family is grieving, upset and if they have questions. So he is not taking anything that they are saying personally," said Alford.
Dr.. Murray's attorneys say their client is considered a witness and not a suspect in LAPD's investigation into the pop icon's death, and that he is remaining in Los Angeles voluntarily until the investigation is complete.
Meanwhile, investigators with the Los Angels County Coroner's office visited Jackson's home Monday afternoon. Investigators carried out two large plastic bags containing medications. They would not reveal what type of medication or in what quantity was recovered from the home.