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Case Description
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Who killed 42 year old Mario Rivera in 1981?
On a Thursday afternoon, the 10th of December in 1981, an employee of the Oregon Humane Society was near a pond in the 1000 block of NE Columbia Boulevard in Portland, Oregon. At approximately 12:40 pm, the employee noticed what appeared to be a red parka in the water. A closer look revealed a much grimmer reality: the parka was being worn by a deceased individual. The victim was identified as Mario Rivera, a 42-year-old Hispanic male.
An autopsy later determined that Rivera had not drown ...Read More
On a Thursday afternoon, the 10th of December in 1981, an employee of the Oregon Humane Society was near a pond in the 1000 block of NE Columbia Boulevard in Portland, Oregon. At approximately 12:40 pm, the employee noticed what appeared to be a red parka in the water. A closer look revealed a much grimmer reality: the parka was being worn by a deceased individual. The victim was identified as Mario Rivera, a 42-year-old Hispanic male.
An autopsy later determined that Rivera had not drown ...Read More
Links to Additional Sources (1)
See any mistakes?Victim Details
Mario Rivera
November 8, 2022
Male
Hispanic / Latino
Portland
OR
1981-12-10
42
Mario
Rivera
11/23/2025
Area Body Found:
Forum Posts (1)
I’ve been reading through the old case files about Mario Rivera, and something that caught my atte... ...Read More
10/11/2024
10/11/2024
