Watch: Spider-Man artist John Romita Sr. on killing off Gwen Stacy

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Jun 27, 2017, 6:44 PM EDT (Updated)

It is considered the moment that comic books grew up.

Gwen Stacy's death in Amazing Spider-Man #121 wasn't just a genuine shocker of a moment -- it marked a seismic shift for comics. The death of a major supporting character, the love of Peter Parker's life, was a turning point for comic books, because now fans knew that the stakes were raised.

Sure, comic book heroes had dealt with loss before. Spider-Man alone had seen seen the death of Gwen's dad, Captain Stacy, a few years earlier. And of course, Peter learned that whole "with great power comes great responsibility" thing from the death of good old Uncle Ben.

But the demise of gorgeous Gwendolyn was something different.

And it was John Romita Sr. who killed her.

When we talked with the legendary Spider-Man artist for an in-depth interview, there was no way we weren't going to ask him about his role in one of the most important comic book storylines of all time. Check out the video below to hear Mr. Romita describe why he felt Gwen had to go and how a classic comic strip played a part in his reasoning for the big kill.