and office beginning about 8 a.m. -LRB- 11 a.m. ET -RRB- Tuesday . `` The search warrant authorized investigators to look for medical records relating to Michael Jackson and all of his reported aliases , '' the statement said . `` Dr. Murray was present during the search of his home and assisted the officers . '' Investigators left Murray 's home about noon , he said , taking cell phones and a computer hard drive . `` As of 2 p.m. , the search at Dr. Murray 's office continues , '' the statement said . Murray , a Texas-based cardiologist , allegedly gave Jackson the anesthetic propofol -- commonly known by the brand name Diprivan -- in the 24 hours before he died , said the source , who asked not to be named because the individual was not authorized to speak to the news media . Watch a profile of Murray '' In a statement Monday , the doctor 's attorneys said they would n't comment on `` rumors , innuendo or unnamed sources . '' In the past , they have said Murray never prescribed or administered anything that could have killed Jackson . Watch CNN
LAS VEGAS , Nevada -LRB- CNN -RRB- -- Investigators searched the Las Vegas home and office of Michael Jackson 's personal physician , Dr. Conrad Murray , on Tuesday morning , a Drug Enforcement Administration spokesman said . Investigators arrive at the Las Vegas , Nevada , home of Michael Jackson 's personal physician . Los Angeles police and DEA agents , carrying search warrants , were `` looking for a lot of things , '' said Assistant Special Agent in Charge Mike Flanagan . Aerial cameras showed investigators leaving Murray 's home , three hours after they entered , carrying several containers . The searches came a day after a source with knowledge of the investigation confirmed to CNN that Murray administered a powerful drug that authorities believe killed the singer . Flanagan said that while he could not disclose details of the search warrants , because a judge had ordered them sealed , he confirmed they were looking for documents and computer records . Murray 's attorney , Ed Chernoff , issued a statement saying that officers from the DEA , Los Angeles police and `` various local agencies '' executed a search warrant at Murray 's home