8) “WHAT IF MARROW KILLED GAMBIT?” – VOL. 2 #106
The Mutant Massacre was the murder of many of the sewer-dwelling Morlocks by Mister Sinister’s Marauders. Years later, it was revealed that one of those Marauders was Gambit, the Cajun mutant who made pink armor, kneepads and trench coats a fashion statement. Marrow, an X-Man who was previously a Morlock was naturally a bit peeved at this, and on Earth-983, she murdered him in revenge…
Gambit’s skewering hasn’t become part of Earth-616 continuity yet, but… A man can dream, right? There’s always time…