Oklahoma is in the international spotlight after the execution of Clayton Lockett did not go as planned. Here is a timeline of Tuesday night's events:
6:23 p.m. - Execution of Clayton Lockett begins.
6:33 p.m. - Lockett declared unconscious.
6:36 p.m. - Lockett starts convulsing.
6:37 p.m. - Witnesses say they heard Lockett say "something's wrong."
6:39 p.m. - Officials lower the blinds and announce a vein failure. Officials say the chemicals did not enter as they were supposed to.
7:06 p.m. - Lockett declared dead of an apparent heart attack.