Klein , who treated Jackson for decades , denied in a CNN interview last month that he had given Jackson dangerous drugs . NEW : Lawyer for Jackson physician case report reveals ` ` nothing new '' Federal , state agencies launch independent investigations into Jackson 's death . Jackson died from lethal combination of drugs , Los Angeles attorney 's office said . The legendary pop singer was found dead on January 25 .
NEW : Lawyer for Jackson physician case report reveals ` ` nothing new '' Federal , state agencies launch independent investigations into Jackson 's death . Jackson died from lethal combination of drugs , Los Angeles attorney 's office said . The legendary pop singer was found dead on January 25 .