Peter Parker, the Spectacular Spider-Man #052 (1981)
“The Day of the Hero Killers!”
Writer: Roger Stern
Artist: Rick Leonardi
The White Tiger is thrown out of a car onto the sidewalk in front of the Daily Bugle with a note pinned to him that says “This is the first.” He goes to the hospital and they remove about 12 bullets from him.
Spider-Man goes after the gang responsible. Spider-Man beats the crap out of everybody and then Mace is shot by his own men, by his own orders, in an attempt to try and hit Spider-Man. Spider-Man sends him to the hospital and knocks out the remaining men.
The White Tiger takes off the amulets that give him power and decides to move far away and stop being a superhero altogether.