Peter Parker, the Spectacular Spider-Man #019 (1978)
“Again, the Enforcers!”
Writer: Bill Mantlo
Artist: Sal Buscema
Lightmaster sends the Enforcers to the Coffee Bean to lure Spider-Man into a fight. Spider-Man easily defeats them. One of the students in the Coffee Bean was Hector Ayala (aka White Tiger). As everybody else left the diner, Hector remained in case Spider-Man needed help. He didn’t. Lightmaster, watching the TV, suspects Hector to be the secret identity of Spider-Man.