Four adult siblings who spent time with the late Michael Jackson are accusing him of being a "serial child predator" and suing his estate for child sex trafficking, claiming that he abused them when they were minors. In a complaint filed on Feb. 27, obtained and viewed by Global News, Edward, Dominic, Marie-Nicole and Aldo Cascio alleged that Jackson, who died in 2009 at the age of 50, "drugged, raped, and sexually assaulted" them "beginning when some of them were as young as seven or eight.