HOUSTON — A federal appeals court has rejected an appeal from a 35-year-old man on Texas death row for the fatal shooting of a man during a robbery of a San Antonio ice house more than 16 years ago.

The 5th U.S. Circuit Court of Appeals has turned down arguments that Obie Weathers is mentally impaired and shouldn’t be put to death. The U.S. Supreme Court has ruled that mentally impaired people may not be executed.

Weathers was 19 in February 2000 when court records show he shot 63-year-old Ted Church twice in the head and once in the abdomen as Church tried to break up the robbery at the bar on San Antonio’s east side. Church was a customer. Weathers fled with about $200.

He doesn’t yet have an execution date.