re: What is the most chilling unsolved murder mystery you know?

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The initial investigation into the Jamison family's disappearance indicated that they had probably not vanished of their own accord. The Jamisons' pickup truck was discovered within a few days,[7] abandoned in Latimer County, Oklahoma, a short distance south of the town of Kinta.[8] The Jamisons' bodies were not found, but their malnourished dog, Maisie, was still in the truck.[9][10] Also discovered were the Jamisons' IDs, wallets, mobile phones, a GPS system, and about $32,000 in cash.[5] The Jamisons were not known for carrying large amounts of cash with them.[1] Another clue was the surveillance video from the family's home security system.[10] The footage, time stamped the day they left, showed the couple making several silent trips between their vehicle and home, as they methodically packed to leave. In the footage, the couple's movements were described as "trancelike".[10] The video also shows Sherilyn Jamison place a brown briefcase in the family pickup.[7] Former Sheriff Beauchamp remarked that he believed the briefcase could be an important clue. Indeed, both the briefcase and Sherilyn’s small-caliber handgun have never been recovered.[7]

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Before the remains were discovered, several theories emerged about the family's disappearance, such as that they had faked their own deaths, were in witness protection, were murdered, or had died by group suicide.[12] Shortly before the disappearance, Bobby Jamison was involved in a bitter lawsuit with his father, Bob Dean Jamison, claiming that Bob Dean had threatened the family. Bobby stated that his father had struck him with his vehicle on November 1, 2008 and that Bob Dean was involved in gangs and meth. Police do not believe that Bobby's father was involved in the family's disappearance.[12]

Another popular theory was that the Jamisons were involved in drug dealing. Investigators cited the large amount of cash found in the Jamisons' truck, and the apparent strange behavior exhibited by Bobby and Sherilynn shortly before they went missing.[13] The Jamisons had reportedly told their local pastor Gary Brandon on separate occasions that they had seen spirits inside their home and that Bobby Jamison had allegedly claimed to have been reading from the “satanic bible”.[13]

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