ABC News has learned that Murray was arrested on domestic violence charges in 1994 after an incident with his then-girlfriend. The doctor was tried and acquitted.
Whether he'll remain free of charges related to the June 25 death of Michael Jackson remains to be seen. Court papers have shown that the raid Tuesday on Murray's Las Vegas home and office and last week's raid at his Houston office collected evidence to be used in an investigation of possible manslaughter charges, according to the police search warrants.
Tuesday's raid netted envelopes, yellow cases, cell phones and a computer hard drive.
On Wednesday Murray's lawyer Ed Chernoff confirmed that authorities were looking for documents and drug information with the names of Jackson's many aliases, they believed he used to when getting prescriptions.
"The warrant authorized detectives from the Los Angeles Police Department and the federal Drug Enforcement Administration to seize prescriptions, files, billing information, tests results, electronic records and other material kept under pseudonyms, including Omar Arnold, Paul Farance, Bryan Singleton, Jimmy Nicholas, Blanca Nicholas, Roselyn Muhammad, Faheem Muhammad, Frank Tyson, Fernand Diaz, Peter Madonie, Josephine Baker and Kai Chase. Also listed was the name of Jackson's son Prince," Chernoff said in a statement.
The foucsed attention on Murray, experts said, does not bode well for the cardiologist.
"This seems like death by a thousand cuts," ABC News legal analyst Dana Cole told "Good Morning America." "They're just not going to let up on this guy. We'll have to see what it ultimately reveals."
The LAPD confirmed that toxicology reports from Jackson's autopsy will be delayed another week, but preliminary results show the powerful anesthetic propofol was a contributing factor in the pop icon's death. And it was Murray who reportedly administered the drug to Jackson the day he died.
Jackson's personal chef has also spoken out recently, Telling the Associated Press that Murray seemed off his normal routine the day Jackson died. While he usually came to get Jackson's breakfast in the morning, which included granola, the chef reported that Murray only came downstairs a little after noon, yelling for the singer's eldest son, Prince Michael I, 12.
Murray has also been flamed in the media and by other doctors not only for waiting 30 minutes to call 911 after he found Jackson unresponsive but for performing CPR on a bed, when standard protocol calls for the lifesaving measure to be performed on the floor or another hard surface.
Murray, through his lawyers, has repeatedly proclaimed his innocence, saying he never gave Jackson anything that should have caused his death.
"At the end of the day, it was really just Dr. Murray and his patient Michael Jackson in the room, and his patient was found dead," Cole said.