Authorities are asking for the public's help in solving the cold-case slaying of a Hocking County greenhouse owner three years ago. The new focus on the beating death of 56-year-old Robert "Mike" Yoder outside his home in April 2010 is part of Ohio's renewed efforts to bring attention to the state's unsolved slayings. The County Sheriff's office is offering a 5 thousand dollar reward for information leading to the arrest and conviction of whomever is responsible. Investigators believe robbery or burglary was the motive.