2011 : Chopper reportedly went down near 1,000-foot TV tower . Crash took place during heavy fog , reports Caller - Times newspaper . Fourth died in critical condition at local hospital , report says . Three died when MH-53 ##D Dragon crashed in field near Corpus Christi .
NEW : Chopper reportedly went down near 1,000-foot TV tower . Crash took place during heavy fog , reports Caller-Times newspaper . Fourth victim in critical condition at Texas hospital , military says . Three killed when MH-53 Sea Dragon crashed in field near Corpus Christi .