Keith Clay and Shannon Thomas
![[[Ellis Unit](https://upload.wikimedia.org/wikipedia/commons/d/d8/EllisUnitTX.jpg)
| birth_place =
Harris County, Texas, U.S.
| death_date =
| death_place =
Huntsville Unit,
Huntsville, Texas, U.S.
| victims = 4 (one as an accomplice)
| conviction =
Capital murder
| criminal_penalty =
Death
| death_cause = Execution by
lethal injection
| criminal_status =
Executed
| states =
Texas
| country =
United States
}}
Keith Bernard Clay (February 18, 1968 – March 20, 2003) and
Shannon Charles Thomas (July 27, 1971 – November 16, 2005) were American
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. Clay was convicted of the 1994 murder of a gas station clerk, during which Thomas was present. The killing occurred less than two weeks after the Rios family murders. Both were
executed by
lethal injection by the
U.S. state of
Texas, in 2003 and 2005, respectively.
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