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Case Description
Any updates on this case?
Alexander Mitchell Riffenburg, a 16-month-old boy, disappeared from Palmdale, California, on January 9, 2009, along with his mother, Jennifer Anne Walsh. His father, Thomas Riffenburg, was the last person seen with them. In 2017, Thomas confessed to their murders, though the bodies were never found. Despite his admission, the exact circumstances surrounding Alexander’s disappearance remain unclear, and his remains have yet to be located. The case is classified as an endangered missing person, ...Read More
Last Seen: Jan 09, 2009
Last Seen: Jan 09, 2009
Links to Additional Sources (7)
See any mistakes?Victim Details
Nov 24, 2014
Dec 14, 2021
Alexander
Riffenburg
16
1
36 inches
40 lbs
White / Caucasian
Male
Jan 09, 2009
Palmdale
California
Los Angeles County
249
16044
Los Angeles Police Department- Adult Missing Persons Unit
Los Angeles
California
Los Angeles County
90012
100 West 1st Street, California
8772755273
Local
Law Enforcement
1499-31023
2014-11-24
Los Angeles Police Department- Adult Missing Persons Unit
Sandy
Blue
Blue
11/25/2025
Area Last Seen:
Forum Posts (3)
I’ve been following Alexander Mitchell Riffenburg's case for a while, and there’s something that... ...Read More
12/17/2024
12/17/2024
Has anyone looked into whether there have been any searches in nearby remote areas or properties con... ...Read More
12/05/2024
12/05/2024
Hey everyone, I’ve been going down the rabbit hole on the Alexander Mitchell Riffenburg case, and ... ...Read More
05/14/2024
05/14/2024
