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 (MP55856) and 4 other sources
In the cold of a Chicago winter, a family was forever changed when Sergio Calderon vanished. It was January 15, 2011, when the 45-year-old was last seen at a home in the city. The specific details surrounding his last known moments remain unclear, leaving his loved ones with a painful void and a multitude of unanswered questions. At the time of his disappearance, he was described as a Hispanic male, standing between 5'6' and 5'8' tall, and weighing between 170 and 190 pounds. He had brown hair and brown eyes. The report of his disappearance was filed with the Chicago Police Department three days after he was last seen, officially marking the start of a long and agonizing search for answers.

The investigation into Sergio's disappearance was handled by the Chicago Police Department's Area Central detectives. His case was entered into the National Missing and Unidentified Persons System as MP55856. Despite the efforts of law enforcement, the trail grew cold, and the initial hope of a swift resolution began to fade. The days turned into weeks, the weeks into months, and then into years, with no significant leads to bring clarity to the circumstances of his disappearance. For his family and community, the lack of information has been a source of continuous distress, a wound that cannot begin to heal without closure.

The silence in Sergio Calderon's case is a heavy one, emblematic of the quiet suffering experienced by families of the missing. With no clear evidence of what transpired on that January day, speculation can run rampant, but the facts remain scarce. The overview of this case is one of sudden and unexplained absence. A man was present in a residence and then was gone, leaving behind a life and a family who continue to hope for answers. The passage of time has not diminished their need to know what happened to Sergio, and his case remains a poignant reminder of the enduring mystery and heartache that surrounds those who disappear without a trace.

Last Seen: Jan 15, 2011

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.

81%Moderate
John Doe — Chicago, Illinois - unidentified case UP11190
John Doe — Chicago, Illinois
UP11190 • Found Aug 21, 2012
View case
Sex ✓Male
Age 100%Est. 45–60 vs 45 when missing
Race 100%Hispanic
Location 100%5 mi away, same county
TimingFound 19 months after last seen
Height 84%5'0"–5'4" vs 5'6"–5'8"
80%Moderate
John Doe — Chicago, Illinois
UP97269 • Found Aug 23, 2022
View case
Sex ✓Male
Age 100%Est. 45–60 vs 45 when missing
Race 100%Hispanic
Location 100%6 mi away, same county
TimingFound 12 years after last seen
Height 100%5'6"–5'10" vs 5'6"–5'8"
Weight 76%130 lb vs 170–190 lb
77%Possible
John Doe — Chicago, Illinois - unidentified case UP125425
John Doe — Chicago, Illinois
UP125425 • Found Jun 20, 2024
View case
Sex ✓Male
Age 100%Est. 45–60 vs 45 when missing
Race 100%Hispanic
Location 100%8 mi away, same county
TimingFound 13 years after last seen
Height 75%4'11"–5'7" vs 5'6"–5'8"
Hair 60%Black vs Brown
77%Possible
John Doe — Chicago, Illinois - unidentified case UP11512
John Doe — Chicago, Illinois
UP11512 • Found May 2, 2013
View case
Sex ✓Male
Age 100%Est. 45–60 vs 45 when missing
Race 60%White
Location 100%5 mi away, same county
TimingFound 2 years after last seen
Height 68%5'11" vs 5'6"–5'8"
Weight 97%149 lb vs 170–190 lb
Hair 100%Brown vs Brown
76%Possible
John Doe — Lemont, Illinois - unidentified case UP54761
John Doe — Lemont, Illinois
UP54761 • Found Dec 18, 2018
View case
Sex ✓Male
Age 85%Est. 40–60 vs 45 when missing
Race 60%White
Location 97%20 mi away, same county
TimingFound 8 years after last seen
Height 100%5'8" vs 5'6"–5'8"
Weight 59%118 lb vs 170–190 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
76%Possible
John Doe — Chicago, Illinois
UP14526 • Found Jul 19, 2015
View case
Sex ✓Male
Age 85%Est. 40–60 vs 45 when missing
Race 60%White
Location 100%5 mi away, same county
TimingFound 5 years after last seen
Height 84%5'4" vs 5'6"–5'8"
Weight 100%160 lb vs 170–190 lb
Hair 100%Brown vs Brown
76%Possible
John Doe — Zion, Illinois
UP142067 • Found Apr 7, 2014
View case
Sex ✓Male
Age 85%Est. 50–70 vs 45 when missing
Race 60%White
Location 91%45 mi away, same state
TimingFound 3 years after last seen
Height 100%5'1"–5'5" vs 5'6"–5'8"
Weight 100%160–170 lb vs 170–190 lb
Hair 40%Gray vs Brown
Eyes 100%Brown vs Brown
75%Possible
John Doe — Illinois
UP79964 • Found Mar 12, 2021
View case
Sex ✓Male
Age 100%Est. 35–50 vs 45 when missing
Race 60%White
Location 100%5 mi away, same county
TimingFound 10 years after last seen
Height 100%5'6"–6'0" vs 5'6"–5'8"
Weight 36%103 lb vs 170–190 lb
Hair 70%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.