By Josh Rottenberg
Updated August 27, 2009 at 11:26 PM EDT

Newly released search warrants reveal that marijuana was found in Michael Jackson’s home by investigators in the wake of his June 25 death, the Los Angeles Times reports. The unsealed warrants also claim that “tar heroin” was found in Jackson’s bedroom, but sources familiar with the investigation tell the Times that subsequent testing showed the substance was not, in fact, heroin — nor was heroin detected in Jackson’s system. According to the search warrant, family members found the suspected heroin after Jackson’s death and alerted the coroner’s office. Upon searching the house, authorities discovered two baggies of marijuana and a number of empty pill bottles.