Texas executes Jamaal Howard despite concerns over lethal injection drug used in failed Tennessee execution

A Texas man convicted of killing a convenience store clerk during a robbery was executed Wednesday evening after the Supreme Court declined to halt the execution, despite his attorneys raising concerns about the lethal injection drug used in a failed execution attempt in Tennessee last week.

Jamaal Howard, 46, was pronounced dead at 8:03 p.m. He was sentenced to death for the 2000 killing of 42-year-old Vickie Swartout in Silsbee, Texas.

Prior to Howard's execution, his attorneys pointed...