Peter Parker, the Spectacular Spider-Man #062 (1982)
Writer: Bill Mantlo
Artist: Ed Hannigan
Peter is working on an experiment to see the effects of radiation on gold. A villain who calls himself Gold Bug breaks in and steals the irradiated gold and takes it to the Maggia to try and strike a deal. Spider-Man shows up at their meeting and let’s them have it. Gold Bug falls into the water and supposedly drowns.