Missouri executed 52-year-old Brian Dorsey on Tuesday, despite pleas to spare his life from more than 70 correctional officers, a judge who upheld Dorseys death sentence on appeal, several jurors on the case and some of the victims family members.

Dorsey was killed with a lethal injection of pentobarbital, punishment for killing his cousin and her husband in 2006 after bingeing crack cocaine, a drug that caused him to experience psychosis. Following the advice of his appointed lawyers, who were paid a flat fee, Dorsey pleaded guilty without securing a deal from the state to take the death penalty off the table. After a two-day sentencing trial, a jury sentenced him to death.

As more details came to light about Dorseys case, a flurry of surprising supporters lined up to urge Missouri Gov. Mike Parson (R) to grant Dorsey clemency and commute his death sentence to life without parole. Parson declined the request on Monday, allowing the execution to go forward.

To all of the family and loved ones I share with Sarah and to all of the surviving family and loved ones of Ben, I am truly deeply overwhelmingly sorry, Dorsey wrote in his final statement , referring to his victims. Words cannot hold the just weight of my guilt and shame. I still love you. I never wanted to hurt anyone. I am sorry I hurt them and you. To my family, friends, and all of those that tried to prevent this, I love you! I am grateful for you. I have peace in my heart in large part because of you and I thank you. To all those on ALL side[s] of this sentence, I carry no ill will or anger, only acceptance and understanding.

After the drug was injected, Dorsey took a few deep breaths, followed by several shallow, quick breaths, The Associated Press reported . He raised his head from the pillow, blinked hard, and eventually stopped moving. He was pronounced dead at 6:11 p.m.