FL FL - Donald Denninger, 25, Largo, 29 October 1990

[TheArtfulDetective]

Donald James Denninger



Case Classification: Missing
Missing Since: October 29, 1990
Location Last Seen: Largo, Pinellas County, Florida

Physical Description:
Date of Birth: September 25, 1965
Age: 25 years old
Race: White
Gender: Male
Height: 6'0"
Weight: 180 lbs.
Hair Color: Black
Eye Color: Hazel
Nickname/Alias: Unknown
Distinguishing Marks/Features: May have a mustache.

Identifiers:
Dentals: Not Available
Fingerprints: Not Available
DNA: Not Available

Clothing & Personal Items:
Clothing: White t-shirt and blue jeans
Jewelry: Unknown
Additional Personal Items: Unknown

Circumstances of Disappearance:
Denninger was last seen by his girlfriend at home on October 29, 1990 in Largo, FL at 12:00 a.m. He was reported missing by family members from out of state after the police checked on his whereabouts for a pending court case. He was reportedly depressed and suicidal when last seen. Denninger lived a transient lifestyle in 1990.

Investigating Agency(s):
Agency Name: Pinellas County Sheriff's Office
Agency Contact Person: Detective Michael Bailey
Agency Phone Number: (727) 582-6200
Agency E-Mail: N/A
Agency Case Number: 91-90984

NamUs Case Number: 10472
NCIC Case Number: M-513770647

1695DMFL - Donald James Denninger

 

[mlhenn]

MISSING - Donald James Denninger | Solve the Case

Donald was sent to Florida by his parents in Pennsylvania to live with his grandmother. There were many issues with his behavior and addiction problems and this was what they thought would be best to get him away from the influences in his hometown. He was not in Florida for very long when he...

www.solvethecase.org

Circumstances of Disappearance:
Denninger was last seen by his girlfriend at home. He was reported missing by family members from out of state after this agency checked on his whereabouts for a pending court case. He was reportedly depressed and suicidal when last seen. No body had ever been found. Denninger lived a transient lifestyle when he went missing.

Additional Details:
Donald was reportedly suicidal at the time of his disappearance, however, no body has ever been found. Donald’s parents are now both deceased, as well as his twin brother. As dear family friends of mine, I would love to carry on the search for them.

Case Last Updated:
Aug 25, 2024

 

[Caring1]

8 Unidentified Person Exclusions

 

[madamx]

FL Post in thread 'FL - Ocala, WhtMale UP6168, 25-50, hit by car on I-75, Nov'90'

Jun 26, 2025

Bumping

• madamx

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[spartanx]

I imagine that if he lived with his girlfriend in one state and his family in another, he probably wasn't well... I say this because if he had those suicidal tendencies and lived precariously, it's because he either had something serious, untreated mentally wrong or was a drug user, and his girlfriend could have driven him to that... what a sad case... most likely he found a way to commit suicide quickly, painlessly, and so that his body would never be found...
whatever it is
Rest in peace

 

[Caring1]

8 Unidentified Person Exclusions
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