Success! lol
OK so I found a video on youtube that shows someone on the sims 3 electrocuting their sim and I saw one of the traits for that sim was technophobe so I put in a sprinkler in the house, then moved the tv in the middle of the giant puddle from the sprinkler. Then, I had the sim sabotage the tv, basically he tinkers with the tv until it's broken. Then, you turn on the tv and have him try to repair it. He gets shocked a few times then you keep having him repair the tv until he dies. His ghost was yellow and smoking.