The Spectacular Spider-Man #150 (1989)
Writer: Gerry Conway
Artist: Sal Buscema
Joe Robertson is found guilty for concealing information of a murder that happened 20 years ago. He’s sent to jail for 3 years and his cell is next to Tombstone, the man he testified against. Spider-Man sees a werewolf and finds a pile of dead Kingpin goons. He tells Kingpin somebody’s trying to kill his men. The werewolf is actually Eduardo Lobo, the man Gloria Grant is dating.