 A reward of $10,000 from the Southern Ohio Crime Stoppers fund was authorized on May 10, but not announced by authorities until ten weeks later on July 21 due to a "miscommunication and a misunderstanding" about public notification.Police believe that more than one shooter may be responsible for the killings, since two of the crime scenes were within walking distance, a third located about a mile away, and the fourth about eight miles away.Investigators briefly considered the possibility of a murder–suicide, but it was discredited as none of the victims' deaths appeared to be suicides.