Since the start of the year, executions in Ohio, Oklahoma and Arizona have gone awry, with inmates gasping for breath as lethal drugs coursed through their bodies. The Associated Press had witnesses at the executions of the three inmates. A look at how each unfolded:
ARIZONA: Joseph Rudolph Wood was convicted of fatally shooting Debbie Dietz, 29, and her father, Gene Dietz, 55, at their auto repair shop in Tucson in 1989. He was executed on Wednesday.