James Emery Paster (January 30, 1945 – September 20, 1989) and Stephen Albert McCoy (December 17, 1948 – May 24, 1989) were American serial killers who murdered at least three people in Texas between 1980 and 1981. Both were sentenced to death and executed at the Huntsville Unit in Huntsville, Texas, via lethal injection. Prior to Emery's execution, he confessed to two other murders in the Houston area, but he was never tried for either of these killings. McCoy was executed in May 1989, in what was considered a botched execution. Emery was executed in September 1989.