Gary Coleman's family is asking fans to pray for the former child star of "Diff'rent Strokes," who is in critical condition at a Utah hospital suffering from what they call a "serious medical problem," according to the Associated Press. Coleman, 42, who lives in Utah, was admitted to the hospital Wednesday. The hospital released no other details. ABC News, however, is reporting that Coleman injured his head in a fall, slipped into a coma, and is on life support. Coleman also suffered two seizures this year.