Charlie was to quick to think, which caused the electrician to die. All because Charlie was assuming, that's the action that Charlie got.
Everyone saw his lights on in his house, so they blamed Charlie for turning off everybody's lights in the neighborhood. Also, because he shot the dark figure and everyone was starting to get suspicious.
Everybody assumes that Goodman made all the lights go off and because he never went outside to check to see what the noise was outside. Also, just because his car turned on while nobody else's did.