The Human Torch, mainstay of the Fantastic Four, was extinguished earlier this month in Marvel Comics.
Put a stopwatch on your computer and see how long this comics' death lasts (my bet, not long at all).
IIRC, Marvel's last big death was Steve Rogers, aka Captain America, which received mainstream press coverage (verrry slow news day, yes). But they had his former sidekick immediately take up the superhero mantle of Cap, and then they brought Rogers back to life shortly after that as well.
I'm glad I gave up reading comics a long time ago with blatant money grabs like this going on.