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Case Description
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Mary Lou Sena, aged 9, was last seen on September 22, 1979, in Albuquerque, New Mexico. She and her cousin, 11-year-old Billy Sena, left their home in the Martineztown neighborhood around 10:00 a.m. to visit the post office and play on the grass nearby. The children never returned home, and their whereabouts remain a mystery. Several theories emerged regarding their disappearance, including the possibility that they accidentally got locked in a railcar or were abducted.
Years later, in ...Read More
Last Seen: Sep 22, 1979
Years later, in ...Read More
Last Seen: Sep 22, 1979
Links to Additional Sources (10)
See any mistakes?Victim Details
Apr 15, 2010
Jun 04, 2019
Mary Lou
Sena
54
9
63 inches
100 lbs
Hispanic / Latino
Female
Sep 22, 1979
Albuquerque
New Mexico
Bernalillo County
87102
184
26951
Albuquerque Police Department
Albuquerque
New Mexico
Bernalillo County
87102
Heather Chavez
Detective
400 Roma Avenue NW, New Mexico
5057682020
Local
Law Enforcement
790057972
Albuquerque Police Department
Black
Brown
Brown
11/08/2025
Area Last Seen:







