Corey Michael Lang was last seen on April 3, 2011, at the French King Bridge in Erving, Massachusetts. A resident of Hinsdale, New Hampshire, he was witnessed taking his own life by firearm and falling into the Connecticut River. Strong currents swept his body away and, despite exhaustive search efforts, remains were not recovered; his case is classified Lost/Injured Missing.

Born January 4, 1979, Lang served in the U.S. Army from 1998 to 2000 with deployments to Bosnia and Kuwait. After the military he worked as a mechanic. He enjoyed reading, restoring motorcycles, long-distance running and had hiked the Appalachian Trail and the Long Trail. He had been diagnosed with paranoid schizophrenia, with two hospitalizations; he was discharged from a six-month stay about seven weeks before his death.

Lang was described as a white male, dark brown hair kept very short, brown eyes, about 5 feet 8 inches to 5 feet 9 inches, with distinctive tattoos on both arms including a sword bearing the word Forbearance. The Massachusetts State Police and Hinsdale Police handled the investigation. If anyone knew Corey or his whereabouts around April 3, 2011, please share information with investigators.