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Keith Clay and Shannon Thomas

1968–2003

United States

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Biography

Keith Bernard Clay (February 18, 1968 – March 20, 2003) and Shannon Charles Thomas (July 27, 1971 – November 16, 2005) were American convicted serial killers and mass murderers who killed a total of four people between December 1993 and January 1994. Thomas was convicted of the Christmas Eve, 1993 murders of 32-year-old Roberto Rios and his two children: 10-year-old Maria Rios and her 11-year-old brother, Victor Rios, in their Baytown, Texas home. Clay had also been present during the killings and confessed to attacking Roberto.

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Biography text · CC BY-SA 4.0 · Source checked 2026-10-13

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