An 81-year old man decided he had had enough. He hand built a "killer-robot" with the help of numerous manuals he found on the internet.
Nobody stopped him when he armed the robot with a semi-automatic pistol, positioned it on his front lawn and let it shoot him in the head, four times.
Neighbours found the man after they ran out when they heard the shots and found the man dead on the pavement. A note explained he let himself be shot outside so people could find him.