LOS ANGELES (TheWrap.com) - Michael Jackson's doctor Conrad Murray has one less thing to worry about. Joe Jackson, the father of the deceased pop singer Michael Jackson, has dropped his wrongful death lawsuit against Murray, who was convicted of involuntary manslaughter for the musician's death. In a court document filed in Los Angeles Superior Court on Monday and obtained by TheWrap, Jackson asks that the suit be dismissed without prejudice. The elder Jackson brought the suit in June 2010, a year after his son's death at the age of 50, asking for unspecified damages and a jury trial. ...