Gary Coleman, best known for his role as Arnold in the 1970s-80s sitcom Diff'rent Strokes, died today of injuries he suffered in a fall at his Utah home. Coleman, who also appeared in 2003's Postal 2, was 42. TMZ reported Coleman's death just past 12:30 p.m. U.S. Mountain time. He had been in a Provo, Utah hospital since Wednesday, admitted in critical condition with unspecified injuries. TMZ reported Coleman died of a brain hemorrhage associated with falling and hitting his head.