To fry your Sim try to repair cheap electronics such as ovens, fridges, televisions, microwaves, and stereos. You have to create a situation to kill the Sims which produces the Casuse of Deaths. There are different causes of Death in the Sims 4 at present out of which some are natural causes and rest are New fangled emotions. Learn Your Sims Weaknesses Then Exploit Them Drowning the Sim is no longer available in Sim 4.
Killing Sims is challenging and is not as easy as shooting the Zombie at Face because there has to be the specific cause of death to croak. In the end, the Sims are just animated avatars that live and die like video game characters. Sims 4 seems very tricky at first sight when it comes to committing murder but don’t get afraid as it is just a video game.
