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Missing

William Marshall Sisco Jr.










Missing Person Case September 2021


Sisco, approximately 1994




Date reported missing : 06/12/1994

Missing location (approx) :
Pima County, Arizona
Missing classification : Endangered Missing
Gender : Male
Ethnicity :
White


DOB : 09/21/1961 (59)
Age at the time of disappearance: 32 years old
Height / Weight : 6'1, 165 pounds
Distinguishing characteristics, birthmarks, tattoos : Caucasian male. Blond hair, hazel eyes. Sisco has a tattoo on his upper right arm. His nickname is Bill.





Information on the case from local sources, may or may not be correct : Sisco was last seen panning for gold with two friends in the Happy Valley area of Pima County, Arizona on June 12, 1994. That evening he got into an argument with his friends; he wanted to leave and his friends did not. Sisco left on foot and alone. He has never been heard from again.
Sisco had two warrants out for his arrest when he disappeared; one of his friends believes he left of his own accord to avoid having to go to prison. Investigators, however, believe Sisco may have met with foul play or died of exposure in the desert. He left a young daughter behind when he vanished. His case remains unsolved.


Other information and links : ncy

Pima County Sheriff's Department
520-741-4900



September 2021 updates and sources

Pima County Sheriff's Department
The Las Vegas Review-Journal
The Doe Network




October 12, 2004. October 21, 2004.