A third suspect has been convicted of partaking in a brutal, execution-style killing of a clerk and a delivery man at a Fort Worth gas station in 2010.
Randy Keith Seibel, 38, will spend life in prison without parole. He was sentenced in State District Judge Mike Thomas' Tarrant County courtroom on Monday.
Prosecutors argued that Seibel and two colleagues, Kwame Rockwell and Tyrone Thomas, planned to rob a Valero next door to the car lot where they worked. The three entered the convenience store in the 4100 block of Mansfield High Way in the early-morning hours of March 23, 2010.
Prosecutors say Chance Smith and Timothy Thomas positioned themselves outside as lookouts. The belief, prosecutors contended, was that the Valero owners kept a hidden stash of money for cashing customer's checks.
Daniel Rojas was manning the register that night. And Jerry Burnett, a 70-year-old Mrs. Baird's deliveryman, happened to be stocking store shelves.
Rockwell, Thomas and Seibel walked in and ordered Rojas, 22, to empty the register. A security camera positioned above captured the incident –– Rojas followed the orders. Rockwell shot him anyway.
He also shot Burnett, who would cling to life for 10 days. A customer who entered the store in the middle of the crime bungled one of the suspects' attempts to douse the store in gasoline and ignite it.
The robbers escaped with $3,200 in cash and $18,000 in checks. Rockwell was thought to have orchestrated the robbery. Seibel, investigators said, forced Rojas into a backroom where he was shot.
In January, Rockwell was sentenced to death. He was arrested five days after the robbery in San Antonio. Smith, one of the lookouts, took a plea deal for 20 years in prison if he testified against his partners. Timothy and Tyrone Thomas, both cousins, are awaiting trial for capital murder.
Seibel was convicted under the 'law of parties,' the state's felony murder rule. Under that classification, anyone who aids in a murder, whether they pull the trigger or not, can also be charged with capital murder.