Alexander Mitchell Riffenburg was 16 months old when he disappeared from Palmdale, California, on January 9, 2009, together with his mother, Jennifer Anne Walsh. Their last known contact was with Alexander’s father, Thomas Riffenburg, who was seen with them that day.

In 2017 Thomas confessed to killing both Alexander and Jennifer, but neither body has ever been recovered and the circumstances of Alexander’s disappearance remain unclear. The case is classified as an endangered missing person and investigations are ongoing.

If anyone in Palmdale around January 2009 has information about Alexander, Jennifer, or what happened that day, please come forward to assist the investigation.