Between April 8th and May 7th 1992 six store clerks were shot to death in broad daylight across the Midwestern states of Indiana, Missouri, and Kansas. Each incident occurred only a few miles away from Interstate 70. Ballistics evidence conclusively determined the murders were the act of a single shooter, but investigators were never able to zero in on a suspect. A similar unsolved killing spree in Texas several later is believed to be the work of the same individual, according to lead detectives in the I-70 Killer case, however Texas police disagree with this hypothesis. To this day, the identity of the I-70 Killer remains a mystery.