The King of Pop, 50, was killed by an overdose of powerful anesthetic Propofol, which had been administered by his personal doctor Conrad Murray.
Jackson suffered cardiac arrests and paramedics were unable to save him, and Murray was later jailed for involuntary manslaughter.
A new documentary examines Jackson’s death on June 25, 2009, three of the police officers who worked the case have spoken for the first time.
Killing Michael Jackson features the three US detectives who led the original investigation – Orlando Martinez, Dan Myers, and Scott Smith.
In the Quest Red show, Martinez explained: “He had enough Propofol in him to drop a rhinoceros…”
Steve Shafer, Professor of Anaesthesiology at Stanford University, also took part in the documentary and claimed Murray incorrectly administered the drug.
He explained: “Basically, Murray was using the saline bag to hang the bottle of propofol from the stand and also, I think, to hide it because he didn’t want anybody to know he was using Propofol.”
The documentary also shows photographs from inside Jackson’s home treatment room, bedroom, and of Murray’s medical bag.
The detectives recall finding Jackson’s treatment room scattered with medicines, a doll, and Jackson’s computer.
Martinez described entering the scene, saying: “There were post-it notes, or pieces of paper taped all over the room and mirrors and doors with little slogans or phrases.
“I don’t know if they were lyrics or thoughts. Some of them seemed like poems. The bedroom was… it was a mess…
“There was a computer on the bed, there was a lifelike doll on the bed, and there was kind of like advertisements pictures of babies.”
Dr. Murray was convicted of the involuntary manslaughter of Jackson at a trial in 2011.
He received the maximum sentence of four years in prison. His Texas medical license was revoked and his California and Nevada licenses were suspended.
Dr. Murray served two years in prison before being released on parole.