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

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP102914)
In the winter of 2003, 59-year-old William K. Tyler, also known as William Toby, was looking forward to a trip to the warm and sunny destination of Acapulco, Mexico. He had booked a round-trip flight with Mexicana Airlines, departing from Chicago, Illinois, on December 3, 2003, with a planned return on December 10 of the same year. The journey began as expected, and it was confirmed that he successfully boarded his flight in Chicago and arrived in Acapulco. At the time of his departure, he was described as a white male, standing at 64 inches tall and weighing 130 pounds, with brown hair and blue eyes.

The days of his planned vacation in Mexico passed, but when the time came for his return flight on December 10, 2003, William was not on the plane. Airline records listed him as a 'no show,' a deeply concerning turn of events. From that point on, a silence fell over his whereabouts. No one, including his family and friends, reported having any contact with him after he left for his trip. The lack of communication was out of character, and as days turned into weeks with no word, the alarm grew. The last confirmed contact with William was on December 2, 2003, the day before he embarked on his journey.

The Elwood Police Department in Illinois opened an investigation into his disappearance, with the official report being filed in January of 2004. However, the international nature of his last known location presented significant challenges. Despite the passage of many years, there have been no significant leads or breakthroughs in the case. The circumstances surrounding his failure to return from Acapulco remain a mystery. The case of William Tyler is a quiet and unsettling one, a story of a planned vacation that ended in an unexplained and prolonged absence, leaving those who knew him without answers.

Last Seen: Dec 2, 2003

Links to Additional Sources (0)

See any mistakes? Let us know!

Possible Unidentified Matches (8)

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.

83%Moderate
John Doe — Chicago, Illinois - unidentified case UP16642
John Doe — Chicago, Illinois
UP16642 • Found Jan 14, 2017
View case
Sex ✓Male
Age 100%Est. 60–69 vs 59 when missing
Race 100%White
Location 98%16 mi away, same county
TimingFound 13 years after last seen
Height 100%5'5" vs 5'4"
Weight 100%127 lb vs 130 lb
Hair 70%Gray vs Brown
Eyes 100%Blue vs Blue
80%Moderate
John Doe — Stickney Township, Illinois - unidentified case UP10002
John Doe — Stickney Township, Illinois
UP10002 • Found Jul 24, 2008
View case
Sex ✓Male
Age 85%Est. 55–75 vs 59 when missing
Race 100%White
Location 98%18 mi away, same county
TimingFound 5 years after last seen
Height 100%5'3" vs 5'4"
Hair 100%Brown vs Brown
79%Possible
John Doe — Chicago, Illinois
UP14526 • Found Jul 19, 2015
View case
Sex ✓Male
Age 85%Est. 40–60 vs 59 when missing
Race 100%White
Location 98%16 mi away, same county
TimingFound 12 years after last seen
Height 100%5'4" vs 5'4"
Weight 74%160 lb vs 130 lb
Hair 100%Brown vs Brown
78%Possible
John Doe — Chicago, Illinois - unidentified case UP78041
John Doe — Chicago, Illinois
UP78041 • Found Oct 8, 2007
View case
Sex ✓Male
Age 100%Est. 55–65 vs 59 when missing
Race 100%White
Location 98%16 mi away, same county
TimingFound 4 years after last seen
Height 68%5'7" vs 5'4"
Weight 100%142 lb vs 130 lb
Hair 40%Gray vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — Waukegan, Illinois - unidentified case UP163526
John Doe — Waukegan, Illinois
UP163526 • Found Apr 8, 2026
View case
Sex ✓Male
Age 100%Est. 50–65 vs 59 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 22 years after last seen
Height 68%5'7" vs 5'4"
Weight 88%151 lb vs 130 lb
Hair 70%Gray vs Brown
Eyes 100%Blue vs Blue
76%Possible
John Doe — Chicago, Illinois - unidentified case UP51609
John Doe — Chicago, Illinois
UP51609 • Found Jun 28, 2018
View case
Sex ✓Male
Age 85%Est. 45–65 vs 59 when missing
Race 100%White
Location 98%16 mi away, same county
TimingFound 15 years after last seen
Height 100%5'3"–5'8" vs 5'4"
76%Possible
John Doe — Zion, Illinois
UP142067 • Found Apr 7, 2014
View case
Sex ✓Male
Age 85%Est. 50–70 vs 59 when missing
Race 100%White
Location 94%32 mi away, same state
TimingFound 10 years after last seen
Height 100%5'1"–5'5" vs 5'4"
Weight 74%160–170 lb vs 130 lb
Hair 70%Gray vs Brown
Eyes 0%Brown vs Blue
75%Possible
John Doe — Summit, Illinois - unidentified case UP8588
John Doe — Summit, Illinois
UP8588 • Found Jan 3, 2005
View case
Sex ✓Male
Age 100%Est. 55–65 vs 59 when missing
Race 100%White
Location 99%15 mi away, same county
TimingFound 13 months after last seen
Height 36%5'9" vs 5'4"
Weight 22%185 lb vs 130 lb
Hair 40%Gray 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.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.