Dr. Conrad Murray has promised to tell Michael Jackson's children "the truth" about their parentage when they are "adult and prepared".
The late King of Pop raised sons Prince, 19, and Bigi, 14, and daughter Paris, 18, alone before his death in 2009, and while his youngest child's mother was never revealed, his second wife Debbie Rowe is the biological mother of the older kids.
However, there have been rumours that actor Mark Lester or his doctor Arnold Klein are the real fathers of the children, and Michael's former personal physician - who was convicted of the involuntary manslaughter of the singer - claims to know the truth.
He said: "Here is my statement. I am very respectful of the children. I am also sensitive to any information that could damage the children.
"I will say this I know the biological grasp of every one of Michael's children. I also know the biological grasp of Blanket's mother.
"However, I reserve that statement, that explanation, for those children.
"If they came forward to me one day when they are adult and they are prepared and they are not tainted as they are now and they wanted the truth, then we can have that conversation and they can know whatever they want. But I won't put it in the book or any report. But, I do know."
Conrad has claimed he had no idea about the extent of Michael's drug abuse until after his death, and felt he used his status as a single parent as another way to keep it hidden.
He exclusively told BANG Showbiz: "Michael made a very startling statement to me once. He said, 'Conrad I am a single parent.'
"And looking at him I stopped and thought about it, because a lot of the time you hear about a single parent you think of the mum and children and when I thought about it I said, 'That is very, very, true you are a male single parent'. That reinforced in me that he would not do anything ridiculous, like binging on narcotics and opioids that leave risk.
"But, he also knew that I did not support any entity of drug. Michael knew I would leave his side in a jiffy, I'll be gone, I'll never come back never return. I will not tolerate that."