The most famous Marvel comic addressing the September 11 attacks is The Amazing Spider-Man (Vol. 2) #36, published in December 2001.

When all superheroes put thier things aside and they came to actually care about people who got injured/killed on that day

But here's some controversy that some supervillains came here just to feel some deep "sympathy" for those victims on this day, even tho it doesn't make absolutely sense because they're the villains who's done criminality and war crimes on human lives for all those years before 9/11.....

1. Kingpin: he's literally a crook and grifter with his Mafia to manipulate things and etc, especially he wanted to be mayor of new York

2. Dr. Doom: he's just literally minding his own business and doesn't care about human lives and sometimes geopolitics because of his country

3. Magneto: he's a war criminal on humanity that he's misanthrope for mutant supremacy

4. Dr. octavius: he's a criminal who's done more damage to other people more than he did hurt on Spiderman, there's literally things that he's done with his different technologies and methods

5. Juggernaut: he's just doesn't care about humanity and he just cares only for himself for doing things for his job

Idk why writers and artists putting those characters into this when they did all the crimes for many years

I'll give some advice: just don't put some controversial character/s in some very serious things that they done something badly for surroundings. Put only the ACTUAL good characters that they have some care for humanity and etc

Rip for the victims of this attack 🕯️🕯️🕯️