Yeah, you didn't hear? He first gets injured trying to save Captain America from a bullet, and then he encounters the Green Goblin, and they battle. They both die. He was trying to protect Aunt May, which he did, but paid the ultimate price . . . Death. Look it up on Google. He is replaced by a mixed Hispanic teen named Miles Morales, who was inspired to pick up the mantle ]because of Parkers death. Look, the internet does a whole lot better job of explaining it than I do. As far as we know, Miguel doesn't have a Spidey Sense just combat skills. No I don't read the Ultimate series, I just stick to the mainstream.