Murder of Blair Adams

Robert Dennis Blair Adams (December 28, 1964July 11, 1996), known as Blair Adams, was a Canadian man found murdered in a parking lot of an under-construction hotel off Interstate 40 outside of Knoxville, Tennessee, United States. His murder remains unsolved.
Timeline.
Prior to the murder.
On July 5, 1996, Surrey, British Columbia resident Blair Adams withdrew most of his money from his bank account and emptied his safe deposit box of cash, jewelry, gold, and platinum. He then attempted to enter the United States via ferry from Victoria, British Columbia, to Seattle, Washington. Immigration officials flagged him as a possible drug courier due to the large amount of cash he had with him. Once he was found to have convictions on drug and assault charges he was denied entry. In the early morning hours of July 9, he was discovered by Canadian border patrol officers attempting to cross the border on foot at the Pacific Highway Border Crossing. Officials noted Adams had scratches covering his legs and hands. Adams matched the description of a man implicated in an automobile theft, and the vehicle had been discovered abandoned near the Pacific Highway Border Crossing; however, Adams denied involvement, and he was freed on lack of evidence.
Entrance to United States.
Adams managed to enter the United States by car on July 10, 1996, via a Nissan Altima he rented from the Vancouver International Airport. He arrived in Seattle, where he then purchased a roundtrip ticket to Frankfurt, Germany at the Seattle–Tacoma International Airport. Adams had previously worked on a project in Frankfurt for his stepfather's construction company; he had also dated a German woman in Frankfurt, though she later told law enforcement he had never contacted her about visiting. However, Adams subsequently forwent the flight to Frankfurt, and instead traded his credit for a one-way ticket to Washington, D.C.. Upon arriving, he rented a Toyota Camry at Dulles Airport around 6:45 am. Later that morning, on U.S. Route 250 in Troy, Virginia, Adams backed his car into another motorist's vehicle, causing minor damage. The driver of the car told detectives that Adams "seemed nice, but was in a hurry."
Adams arrived in Knoxville, Tennessee sometime on the evening of July 10, 1996, approximately southwest of Washington, D.C.. The first reported sighting of Adams occurred at a gas station at Strawberry Plains Pike in Knoxville at 5:30 pm. Gerald Sapp, an Interstate Repair Service driver, had been called to the gas station; Adams had told the clerk there that he was having difficulty with his car key, and was unable to enter the car. When Sapp arrived, he realized that the key Adams had attempted to use was for that of a Nissan Altima (the vehicle he had abandoned in Seattle), not the Toyota Camry he was driving. Sapp recalled: "I asked him to look in his pockets. I said, ‘If you drove this thing up here, you gotta have another key in your pockets.’ And he wouldn’t look. So I thought he was nuts. He was bound and determined that he had the key he needed for that car." Sapp arranged to have the car towed to a local repair shop, and dropped Adams off at the Fairfield Inn in Knoxville.
Upon his arrival at the Fairfield Inn, Adams was captured on closed-circuit television footage in the hotel lobby. Adams spent around 40 minutes loitering at the hotel before purchasing a room with US$100; when the hotel clerk attempted to return his change, Adams exited the lobby and walked outside. It was later determined he never entered the room he purchased.
Discovery of body.
Adams was discovered by construction workers around 7:30 a.m. on July 11, 1996, in a parking lot of an under-construction Fairfield Inn location outside Knoxville at the Strawberry Plains Pike-I-40 interchange, "half-naked" with his pants off and shirt open. His pants, shoes, and socks were lying near his body. Scattered around his body was German, Canadian, and U.S. currency totaling nearly $4,000. In addition to the money found with the body, police also located a black duffel bag which contained maps and travel receipts and a fanny pack which held 5 ounces of gold bars, gold and platinum coins, jewelry, keys and a pair of sunglasses.
According to an autopsy report by the University of Tennessee Medical Center, Adams had sustained many cuts and abrasions. The Knox County Sheriff’s Department has speculated some of the wounds came from fending off an attack. Adams also suffered a violent blow that ruptured his stomach. His official cause of death was ruled sepsis stemming from an abdominal perforation. He also had a wound to his forehead, which police determined was caused by a crowbar or a club. It was also believed Adams had been sexually assaulted, though no DNA evidence was found to confirm this suspicion.
Investigation.
Law enforcement initially suggested the possibility that Adams's death had been "sex-related" since he was almost entirely nude when discovered. The only physical DNA evidence found at the scene was one strand of long hair that was gripped in Adams's hand. According to subsequent interviews with his mother, Adams had been acting oddly in the weeks prior to his leaving Canada, though she said Adams refused to tell her what was bothering him. According to friends and family, Adams had been sober for two years at the time of his death, and had recently stopped attending Alcoholics Anonymous meetings. He also allegedly told friends that someone was trying to kill him, and confided in his mother that "someone had been spreading rumors" about him.
In a 2010 interview with local law enforcement, it was revealed that the Knoxville Police Department had "never received a credible tip" in Adams's death, though a composite sketch of a man was released in the case; the sketch was of a man two women claimed to have witnessed Adams speaking to outside a Cracker Barrel restaurant in Knoxville.
Media coverage.
This case was featured on a 1997 episode of the popular television show "Unsolved Mysteries".