The family of a man suspected in the slaying of his millionaire grandfather filed a lawsuit in New Hampshire on Monday accusing him of killing his grandfather and possibly his mother, who was lost at sea during a mother-son fishing trip, in a bid to collect a multimillion-dollar inheritance. Nathan Carman's maternal grandfather, wealthy real estate developer John Chakalos, was found fatally shot at his Connecticut home in 2013. Carman, of Vernon, Vermont, was a suspect in the death of Chakalos, who was 87, but no one was arrested. Carman, who's in his early 20s, survived the fishing trip near Rhode Island after the boat carrying him and his mother sank in 2016. His mother, Linda Carman, is presumed dead. Chakalos left more than $42 million to his four daughters, reports the AP.
The attorney for Linda Carman's three sisters says the evidence and details "all point to Nathan as the prime suspect." The lawsuit says that, according to a police investigation, Nathan Carman bought a semi-automatic rifle from a gun store in New Hampshire before his grandfather's shooting death and it was the same caliber weapon used in the killing. The document says he concealed the information from investigators and now says the weapon is missing. Carman said he patched some holes on the 31-foot-long boat with marine putty before going fishing with his mother but insisted the boat was seaworthy. Insurance companies claimed in court last month that "incomplete, improper, and faulty repairs" were made the day before the boat sank. In February, Nathan Carman told 20/20 that he's an easy target for police because he suffers from Asperger's syndrome. (Read more lawsuit stories.)