Alabama inmate Carey Dale Grayson was executed using nitrogen gas for the 1994 killing of a female hitchhiker. He made obscene gestures before his death. Grayson's execution was controversial due to the method used.
Key Points
Carey Dale Grayson was executed using nitrogen gas for the 1994 killing of a female hitchhiker
Grayson made obscene gestures before his death
Controversy surrounds the use of nitrogen gas as a method of execution
Pros
Closure for the victim's family and loved ones
Use of alternative execution method due to drug scarcity
Cons
Controversial method of execution
Issues with the effectiveness of nitrogen gas in causing swift unconsciousness and death