Blair Adams

In early July 1996, 31-year-old Blair Adams, a construction worker living in Surrey, British Columbia, began behaving erratically. He quit his job, withdrew his life savings of $6,000 Canadian dollars, and told friends and family he believed someone was trying to kill him, though he could not or would not identify who. He attempted to cross into the United States at the border but was turned back because of his agitated state.

Adams then flew from Vancouver to Frankfurt, Germany, but immediately turned around and flew back. He crossed the US border at a different checkpoint, bought a round-trip ticket from Seattle to Washington, D.C., then rented a car in D.C. and drove south. His rental car broke down in Knoxville, Tennessee. He was seen at various locations in Knoxville, including a gas station and a hotel where he appeared confused and frightened.

On July 11, 1996, Adams's body was found in the parking lot of a Knoxville construction site. He had been struck in the stomach and his throat appeared to have been slashed. His pants were pulled down, and money and valuables were scattered around his body. Despite having been carrying thousands of dollars in multiple currencies, gold, and platinum, nothing appeared to have been stolen.

The Knox County Sheriff's Office investigated extensively but could find no connection between Adams and anyone in Tennessee. No DNA or fingerprints at the scene matched anyone in databases. The bizarre journey—from Canada to Germany and back, then across the United States—combined with his paranoid behavior and the seemingly motiveless murder, make this one of the most perplexing unsolved cases in American true crime. The case has been featured on Unsolved Mysteries and remains open.