Texas has carried out the first execution in the US since Tennessee death row inmate Christa Pike survived a failed lethal injection last week.
Jamaal Howard, 46, received a fatal dose of pentobarbital at the state prison in Huntsville and was pronounced dead at 8:03 pm. Howard had been convicted of shooting and killing 42-year-old clerk Vickie Swartout in a convenience store robbery in Silsbee, Texas, in 2000.