WithesElectricChair
This addon adds a functioning electric chair to Arma 3.
Once a subject has been seated on it you can turn it on from the outside to lock someone inside of it and watch them be electrocuted to death :D.
The chair is configured as a static weapon launcher without weapons.
This project is completely open source so if you want to possibly learn something or change something you can do it HERE[github.com] (Make sure to star it as well if you enjoy the mod!).
Credits:
Josh Steedie for help with the model
Leroy J Gibs for the excellent voice acting