Police in Los Angeles have interviewed Michael Jackson's personal doctor, Conrad Murray, who was with the singer when he died.
Dr Murray's lawyer said he was "in no way a suspect".
She said Dr Murray, accompanied by his attorney Ed Chernoff, spoke to officers for three hours and "answered every and all questions asked in an attempt to help piece together the mysteries sur
rounding the death of Michael Jackson".
She added: "During the meeting Dr Murray helped identify the circumstances around the death of the pop icon and clarified some inconsistencies.
"Dr Murray has been in Los Angeles since the death of Mr Jackson. He rode in the ambulance to the hospital and stayed at the hospital for hours comforting and consoling the Jackson family. Investigators say the doctor is in no way a suspect and remains a witness to this tragedy."
Los Angeles Police confirmed last night that they did not intend to speak to Dr Murray again but said the investigation into the circumstances surrounding Jackson's death was "ongoing".
Also yesterday, the singer's family released a statement describing his death as "one of the darkest moments of our lives".
The family is reported to be finalising Jackson's funeral arrangements in a series of meetings at their home in Encino, Los Angeles.
They are also understood to have requested an independent second post mortem examination on the singer's body amid reports that the singer was taking a cocktail of prescription drugs and received a shot of the powerful painkiller Demerol shortly before his death.
The Rev Al Sharpton says the Jackson family is considering a series of simultaneous global celebrations and other ideas as they decide how to commemorate the life of the King of Pop.
They want to make sure he is remembered for his spectacular contributions to music and culture, and not for the problems in his private life.
A former nanny who looked after Jackson's children said the star had his stomach pumped "many times" after taking prescription drugs.
Grace Rwaramba, 42, told the Sunday Times: "I had to pump his stomach many times. He always mixed so much of it.
"There was one period that it was so bad that I didn't let the children see him...He always ate too little and mixed too much."
Meanwhile fans expect to hear this week details of refunds for their tickets to the 02 Arena concerts from promoter AEG Live.
Culture Secretary Ben Bradshaw said yesterday that the "vast majority" of fans would get their money back.
Obama writes to grieving family President Barack Obama has written to the family of Michael Jackson to express his feelings over the singer's death, one of his key aides said yesterday.
Senior White House adviser David Axelrod told NBC's Meet the Press programme that Mr Obama thought the pop star was an "important and magnificent" performer.
The US head of state has not made any public comment following Jackson's death on Thursday, but Mr Axelrod said he had shared his feelings with the Jackson family.
He told NBC: "The president obviously believes that Michael Jackson was an important and magnificent performer and obviously he led a sad life in many ways as well but his impact is undeniable."
