Murray's lawyers have maintained for weeks that the doctor was simply a witness in Jackson's death and had nothing to do with it.

Murray has been widely criticised by medical professionals for waiting more than 30 minutes to call 911 and for performing CPR on a bed instead of a hard surface, but he has continually denied giving Jackson any drug that could have killed him.

He has been secluded at his Las Vegas home and reportedly goes out with a security detail due to death threats.

In the aftermath of his death, Jackson's addiction to a variety of drugs was revealed, including propofol (trade name Diprivan), the analgesic Demerol and the painkiller Oxycontin. Track marks found on his arms support the theory that he was addicted to propofol.

Medical experts cited by the ABC News Medical Unit said that the amount of medications reportedly found in Jackson's rented home was 'jaw-dropping' and 'amazing.'

'That list is enough to put down a swarm of zombies,' said Richard Bradley, chief of the Division of EMS and Disaster Medicine at the University of Texas Health Science Center at Houston.