Texas executes man convicted in 2002 shotgun slaying following convenience store abductions

This undated photo provided by the Texas Department of Criminal Justice shows Richard Cobb. Cobb is set for lethal injection Thursday evening, April 25, 2013 in Huntsville, Texas for the slaying of 37-year-old Kenneth Vandever. Two women also were shot and one raped during the attack that began in Rusk, about 120 miles southeast of Dallas. (AP Photo/Texas Department of Criminal Justice) (The Associated Press)

A Texas inmate has been executed for fatally shooting one of three people he and a partner abducted during a convenience store robbery nearly 11 years ago.

Twenty-nine-year-old Richard Cobb received lethal injection Thursday evening for using a 20-gauge shotgun to kill Kenneth Vandever in an East Texas field where two women also were shot and one was raped.

The punishment was carried out after the U.S. Supreme Court rejected a last-day appeal.

Cobb's lawyers contended a prison expert gave false testimony at Cobb's trial in 2004 that tainted his punishment. State attorneys argued the testimony was accurate and the appeal was a meritless attempt to delay the execution.

It's the fourth execution this year in Texas. Cobb's partner, Beunka Adams, was put to death a year ago.