BREAKING NEWS: Michael Jackson's Doctor Officially The Target Of A Manslaughter Investigation

Dr. Conrad Murray, the cardiologist who was with Michael Jackson when he died was identified Thursday as the subject of a manslaughter investigation, according to court records filed in Houston, Texas.

On Wednesday, the LAPD and the DEA searched Dr. Murray's medical clinic and his unit at a public storage facility in Houston.  According to the follow-up warrant filed Thursday in Harris County (TX) District Court, officials were looking for "items constituting evidence of the offense of manslaughter that tend to show that Dr. Conrad Murray committed the said criminal offense."

According to the documents filed with the court, the search teams took into their possession computer hard drives, lists of contacts, letters from the IRS and the Texas Department of Public Safety.  There was also a "suspension notice" from Doctors Hospital, a local acute care facility where Dr. Murray had privileges to practice.

Other items taken from Murray's office included 27 tablets of the appetite suppressant phentermine, one tablet of the muscle relaxant clonazepam, 2 vials of unidentified drugs, and miscellaneous paper work.

Officials permitted Murray's attorney Edward Chernoff to be present at both searches.