Crime Solvers Central
CSC
263 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Alexander Riffenburg missing person case profile photo

Alexander Riffenburg Missing Person Case

Last seen in Palmdale, California on Jan 09, 2009

Victim Details

Nov 24, 2014

Dec 14, 2021

Alexander

Riffenburg

18

1

36 inches

40 lbs

White / Caucasian

Male

Jan 09, 2009

Palmdale

California

Los Angeles County

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

http://www.lapdonline.org/

1499-31023

2014-11-24

Los Angeles Police Department- Adult Missing Persons Unit

Sandy

Blue

Blue

07/20/2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
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, ...
MEMBER ACCESS

Continue reading the complete case summary

Unlock the full case narrative for Alexander Riffenburg, all available source links, additional videos, and member discussions.

Unlock Full Case Access — $3.97/month
Cancel anytime.
Already a member? Log in

Last Seen: Jan 09, 2009

Links to Additional Sources (7)

See any mistakes? Let us know!
  • Dad confesses to killing missing girlfriend, baby - CNN
  • Missing Person / NamUs #MP26875 | NamUs
    • MEMBER ACCESS

    Unlock 5 additional sources

    View the complete collection of available reporting and reference links for this case.

    View All Case Sources — $3.97/month
    Cancel anytime.
    Already a member? Log in

    Latest News

    View All

    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
    Has anyone looked into whether there have been any searches in nearby remote areas or properties con... ...Read More
    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
    MEMBER ACCESS

    Join the discussion for Alexander Riffenburg

    Read full forum posts and contribute to this case discussion.

    Unlock forum access — $3.97/month
    Already a member? Log in

    Other Missing Cases from Palmdale, California

    Jonathon Aujay missing person case in Palmdale, California

    Jonathon Aujay

    Missing: Jun 11, 1998
    Jonathan Aujay, a 38-year-old Los Angeles County Sheriff’s deputy, went missing on June 11, 1998, ...Read More
    David Humpal-Lamagna missing person case in Palmdale, California

    David Humpal-Lamagna

    Missing: Oct 01, 2017
    David Humpal-Lamagna, a 59-year-old man, was last seen in Palmdale, California, on October 1, 2017. ...Read More
    Andor Alexander Molnar missing person case in Palmdale, California

    Andor Alexander Molnar

    Missing: Jun 22, 2024
    Authorities are seeking public assistance in the case of Andor Alexander Molnar, a 40-year-old man w ...Read More
    Tom Starkel missing person case in Palmdale, California

    Tom Starkel

    Missing: Dec 05, 1979
    Tom Ray Starkel, a 19-year-old from Palmdale, California, was last seen on the evening of December 5 ...Read More
    Arturo Lepe missing person case in Palmdale, California

    Arturo Lepe

    Missing: Nov 10, 2009
    Arturo Lepe, age 32, was last seen on November 10, 2009, in Bakersfield, California. He is described ...Read More
    Jeremy Randle missing person case in Palmdale, California

    Jeremy Randle

    Missing: Dec 11, 2023
    Jeremy Lee Randle, a 62-year-old man from Palmdale, California, was last seen on December 11, 2023, ...Read More