LOS ANGELES , California ( CNN ) -- When Michael Jackson collapsed at his rented mansion last month , the singer 's arms were riddled with marks and their veins had collapsed -- both characteristics found in intravenous drug users , sources told CNN on Tuesday . A source says Michael Jackson had `` paper white skin . As white as a white T-shirt . '' The revelations add to the speculation that prescription drugs played a part in Jackson 's death on June 25 . The exact cause is pending toxicology results that are n't due for at least another week . A source involved with the investigation into Jackson 's death told CNN that Jackson had `` numerous track marks '' on his arms -- and that those marks `` could certainly be consistent with the regular IV use of a drug , like Diprivan . '' The sources did not want to be identified because the investigation is ongoing . The source said investigators found numerous bottles of prescription drugs in the singer 's $ 100,000-a-month rented mansion in Holmby Hills , but he would not confirm whether Diprivan was among them . Watch what sources say on condition of Jackson 's body » . He also cautioned that it was too soon to say whether an intravenous drip of Diprivan caused the track marks . Some appeared fresh ; others older , he said . The new ones could have resulted from the IVs that paramedics used when they tried to revive Jackson after he was found unconscious . Another source with knowledge of the case said Jackson 's veins were collapsed in both arms , suggesting frequent intravenous drug use . The first source said Jackson 's body was `` lily white from head to toe , '' perhaps the result of vitiligo -- a condition that causes the skin to lose melanin and produce slowly enlarging white patches . The second source said Jackson had `` paper white skin . As white as a white T-shirt . '' The singer also did not have any hair -- a lingering effect , possibly , of an accident in 1984 when Jackson suffered burns to his scalp while shooting a commercial for Pepsi . Also , said the second source , Jackson was emaciated -- despite the vigor he 's seen displaying in a taped rehearsal clip shot two nights before his death . The drug Diprivan , known by its generic name Propofol , is administered intravenously in operating rooms as a general anesthetic . Last week , a nutritionist -- Cherilyn Lee -- said Jackson pleaded for the drug despite being told of its harmful effects , because he had difficulty falling asleep . Sources close to Jackson told CNN that the insomniac singer traveled with an anesthesiologist who would `` take him down '' at night and `` bring him back up '' during a world tour in the mid-'90s . The California state attorney general 's office is helping the Los Angeles Police Department in Jackson 's death investigation . The office confirmed it is investigating some doctors who treated Jackson over the years . The U.S. Drug Enforcement Administration is also looking into the role of drugs . Los Angeles police have interviewed Jackson 's cardiologist , Dr. Conrad Murray . They impounded Murray 's car , saying it might contain evidence , possibly prescription medications . Police did not say whether they found anything . Through his lawyers , Murray has released several statements , saying he would not be commenting until the toxicology results from Jackson 's autopsy are released . Dr. Neil Ratner , the anesthesiologist who accompanied Jackson during the HIStory tour in the mid-'90s , also refused to comment , although he acknowledged Jackson suffered from a sleep disorder . CNN 's Susan Chun contributed to this report .
Source cites `` numerous track marks '' on Jackson 's arms when medics came . The source also states that the autopsy report was released to the public in a sealed envelope, and it is not known if any of this information has been made available to the family or their attorneys. Sources also say Jackson was emaciated , did n't have any hair . Toxicology reports are at least a week away .