Edward Bohlsen called police at about 10:30 a.m. to report that his son, Eric Bohlsen, was threatening to cut off the senior Bohlsen's head.
Edward, 79, told responding officers that his son has psychiatric issues and was not taking his medication. When First Precinct officers arrived, Eric, 40, ran from police, who said he threatened them with a knife during a foot pursuit.
Eric returned to the apartment he shares with his father, located at the Babylon Park Center apartment complex on Carlls Path near Long Island Avenue and was shot once in the chest while another cop Tasered him after he lunged at police officers.
Eric was transported to Good Samaritan Hospital Medical Center in West Islip where he underwent surgery and was listed in stable condition.
Eric was arrested on two outstanding warrants and additional charges are pending.