Credit: Houston Chronicle/AP; Globe

DEA agents, Los Angeles police and Las Vegas police are executing a search warrant on Dr. Conrad Murray’s Las Vegas home, according to

The officials entered the home of Murray, who was Michael Jackson’s personal physician, on Tuesday morning.

Monday, CNN and Associated Press reported investigators believe Murray was the person who injected Jackson with the powerful anesthesia Propofol the night before the singer died. Jackson regularly used Propofol to help him sleep, according to media reports.

Authorities have twice interviewed Murray and sought a third session with him, which has not yet been set. They also raided his Houston clinic on July 22, which Murray’s camp said came as a surprise.