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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 (MP106897) and 2 other sources
In the spring of 2019, concern grew for 57-year-old David Michael Glienna in the community of Fox Lake, Illinois. A family member, accustomed to speaking with David regularly, grew worried after not hearing from him since April 30th. This prolonged silence was unusual, prompting the family member to officially report him missing to the Fox Lake Police Department on May 8, 2019. When officers conducted a welfare check at his residence, David was nowhere to be found. An initial canvass of the area provided a slightly more recent timeline, with a neighbor reporting having last seen David on May 7, 2019. From that day forward, there were no further sightings or communications from him.

Authorities entered David into missing persons databases, hoping for a lead that might explain his sudden disappearance. His physical description was shared: a white male, standing five feet six inches tall, and weighing around 125 pounds. He had graying, balding hair, brown eyes, and typically wore glasses and a beard. A particularly distinct feature noted was that he had full mouth dental implants. David's brother is filmmaker Greg Glienna, who later dedicated a film to David, touching upon personal struggles his brother faced. Despite these details and the ongoing investigation, David's whereabouts remained unknown for a long time, leaving his loved ones without answers.

The investigation into David Glienna's disappearance continued, but the passage of time brought no clear resolution from official channels. His case was a quiet and troubling mystery for those who knew him, a man who vanished from his everyday life without a trace. While the official status of his missing person case remained open in some public databases, a September 2023 obituary for his father, Michael Glienna, sorrowfully referred to David as 'the late David Glienna,' indicating the family had received information that he was deceased. The overview of this case is one of profound loss, beginning with a family's concern over broken communication and culminating in a heartbreaking confirmation of his passing, though the specific details of what happened to him after he was last seen by his neighbor have not been widely publicized.

Last Seen: May 7, 2019

Possible Unidentified Matches (4)

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 — Waukegan, Illinois - unidentified case UP163526
John Doe — Waukegan, Illinois
UP163526 • Found Apr 8, 2026
View case
Sex ✓Male
Age 100%Est. 50–65 vs 57 when missing
Race 100%White
Location 98%17 mi away, same county
TimingFound 7 years after last seen
Height 100%5'7" vs 5'6"
Weight 78%151 lb vs 125 lb
Hair 100%Gray vs Gray
Eyes 0%Blue vs Brown
77%Possible
John Doe — Chicago, Illinois
UP97269 • Found Aug 23, 2022
View case
Sex ✓Male
Age 100%Est. 45–60 vs 57 when missing
Race 60%Hispanic
Location 91%43 mi away, same state
TimingFound 3 years after last seen
Height 100%5'6"–5'10" vs 5'6"
Weight 100%130 lb vs 125 lb
75%Possible
John Doe — Harvey, Illinois
UP71363 • Found Jun 13, 2020
View case
Sex ✓Male
Age 84%Est. 35–55 vs 57 when missing
Race 100%White
Location 86%61 mi away, same state
TimingFound 13 months after last seen
Height 75%5'3"–5'10" vs 5'6"
75%Possible
John Doe — Savanna, Illinois
UP74401 • Found Feb 29, 2020
View case
Sex ✓Male
Age 85%Est. 40–60 vs 57
Race 100%White
Location 74%104 mi away, same state
TimingFound 10 months after last seen
Height 100%5'3"–5'8" vs 5'6"

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.