Law enforcement sources have told ABC News they discovered the powerful sedative propofol in the home where pop icon Michael Jackson's suffered a fatal cardiac arrest last month. The drug was just one of many among the pharmacopeia found in his Holmby Hills home. Officials have previously said that they believe the star was addicted to a daily dose of the pain medications OxyContin and Demerol and that Jackson was injected with Demerol shortly before his death June 25. The medications found in his home included ones prescribed by multiple doctors to multiple patient names, some believed to be aliases, the sources told ABC News. The use of an alias may not be a crime, federal authorities said at this early stage of the investigation. The...