Clayton Lockett 's execution in Oklahoma was halted two days after it began . Clayton 's vein collapsed as the drugs were administered , records show . -- At 7:06 p.m. , Lockett is declared dead . A doctor said there were not enough drugs because Lockett had not been given enough drugs to kill him . The doctor also said there were not enough drugs to continue .
Clayton Lockett 's execution in Oklahoma was halted two days after it began . Clayton 's vein collapsed as the drugs were administered , records show . A doctor said there were not enough drugs because Lockett had not been given enough drugs to kill him . The doctor also said there were not enough drugs to continue .