Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP106005) and 7 other sources
Thomas Robert Dixon, 41 years old, was last seen on October 15, 1974, in Johnson County, Kansas. On the morning of his disappearance, Dixon was scheduled to meet with an associate at a salvage yard in Independence, Missouri, to collect some junked cars, but he failed to attend the meeting. Instead, he was seen entering the office of Gary Simmons, a businessman, in Overland Park, Kansas. After a private conversation, Simmons authorized a $30,000 check to Dixon, claiming it was for a horse purchase. Dixon cashed the check later that day, but neither he nor Simmons were seen alive again.

The following day, October 16, 1974, Dixon made contact with a friend from a truck stop, reporting issues with his vehicle and borrowing the friend's truck. He later returned the truck and was dropped off at another truck stop, claiming he had secured a new job as a cross-country driver. He called his wife that afternoon, stating he would be heading to Arkansas, but he never returned home.

Dixon's abandoned truck was later discovered at a truck stop, with the keys left inside. Over six months later, in April 1975, Simmons' car was found submerged in the Missouri River. It wasn't until 1991 that Simmons' remains were discovered in a cave in Missouri, revealing he had been shot in the head. Despite the link between the two men's disappearances, Dixon was never found, and his case remains unsolved with foul play suspected.

Authorities continue to investigate the circumstances, suspecting a deeper plot involving both Dixon and Simmons.

Last Seen: Oct 15, 1974

Possible Unidentified Matches (6)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

80%Moderate
John Doe — Kansas City, Missouri
UP5296 • Found Dec 18, 1983
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Sex ✓Male
Age 100%Est. 44–53 vs 41 when missing
Race 100%White
Location 100%10 mi away
TimingFound 9 years after last seen
Height 68%5'5" vs 5'8"
Weight 94%130 lb vs 150–160 lb
Hair 40%Gray vs Brown
Eyes 100%Blue vs Blue
78%Possible
John Doe — Kansas City, Missouri
UP5320 • Found Oct 30, 1995
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Sex ✓Male
Age 100%Est. 40–50 vs 41 when missing
Race 100%White
Location 100%11 mi away
TimingFound 21 years after last seen
Height 84%5'10" vs 5'8"
Hair 100%Brown vs Brown
78%Possible
John Doe — Missouri
UP5021 • Found Apr 22, 1992
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Sex ✓Male
Age 90%Est. 30–40 vs 41 when missing
Race 100%White
Location 90%46 mi away
TimingFound 18 years after last seen
Height 100%5'9" vs 5'8"
Weight 100%165 lb vs 150–160 lb
Hair 100%Brown vs Brown
76%Possible
John Doe — Kansas City, Missouri
UP4999 • Found Jul 2, 1989
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Sex ✓Male
Age 85%Est. 29–49 vs 41 when missing
Race 100%White
Location 100%10 mi away
TimingFound 15 years after last seen
Height 100%5'5"–5'7" vs 5'8"
75%Possible
John Doe — Kansas
UP2428 • Found Jun 23, 1983
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Sex ✓Male
Age 79%Est. 53–55 vs 41 when missing
Race 100%White
Location 97%23 mi away, same state
TimingFound 9 years after last seen
Height 84%5'10" vs 5'8"
Weight 81%190 lb vs 150–160 lb
Hair 50%Red vs Brown
75%Possible
John Doe — Kansas - unidentified case UP2357
John Doe — Kansas
UP2357 • Found Feb 24, 1983
View case
Sex ✓Male
Age 85%Est. 40–60 vs 41 when missing
Race 100%White
Location 85%64 mi away, same state
TimingFound 8 years after last seen
Height 68%5'11" vs 5'8"
Weight 100%160 lb vs 150–160 lb
Hair 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

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