Atmore, Alabama – A convicted cop killer cursed at the state and said “I hate you” and raised both hid middle fingers before he was put to death by lethal injection.

Torrey McNabb, 40, was put to death Oct. 19 and raised both middle fingers as the procedure began. McNabb had sued Alabama over its lethal injection method, according to CBS News.

McNabb’s attorneys had unsuccessfully sought to stop the execution in a lawsuit challenging the humaneness of the state’s lethal injection procedure.

McNabb was convicted of killing Montgomery police officer Anderson Gordon in 1997. McNabb shot Officer Gordon five times as the officer sat in his patrol car.

Officer Gordon was at the scene of an accident McNabb caused while fleeing a bail bondsman.

CBS News reported that Gordon’s relatives said in a statement that Officer Gordon was devoted to his family, his two children and his career as a police officer.

“Over 20 years ago, we lost a companion, a father, a brother and friend who only wanted to make a difference in his community,” the statement read.

“Although, the wounds of having a family member murdered can never be healed, through this tragedy, the Gordon family has remained strong and will continue to be resilient.”

McNabb’s lawsuit claimed that the sedative used in the lethal injection didn’t render a person unconscious before killing them.

The lawsuit pointed to a lethal injection where an Alabama inmate coughed and heaved for 13 minutes before dying.

McNabb appeared to be breathing for the first 20 minutes of the 35-minute long procedure, CBS News reported.

The news site reported that McNabb later appeared to move his head, grimace and raise his arms after two consciousness checks.

The guard pinched his arm, said his name and pulled back his eyelid – before eventually becoming still. McNabb was pronounced dead at 9:38 PM.