Sources opine that medical tests will show that Jackson was on heavy drugs when he died. The police investigation into his death, so far is centered around the role played by Dr Conrad Murray, personal physician of the late singer. 

Although, Dr Murray has not been named as a suspect but it is likely that possible manslaughter charged could be brought by the police department. Jackson suddenly died on June 25, due to a suspected drug overdose.

Meanwhile, a Los Angeles judge has approved plans for the release of a film, which shows the pop singer rehearsing for his comeback concerts at O2 arena in London. The film is likely to be released later this year and most of the proceeds will go to Jackson's estate.