One person is dead after a crash overnight in Liberty Township in Adams County, Ohio State Highway Patrol said.OSHP said the crash happened just after midnight Sunday. Officials said 49-year-old Marty Dotson of West Union drove a Chevy Malibu off the road on State Route 136 before hitting a tree. Dotson was pronounced dead at the scene.A 41-year-old man also in the vehicle was taken to Adams County Regional Medical Center with serious injuries, OSHP said. Officers said Dotson was not wearing a seat belt, but the passenger was.