Zoro is still alive and kicking in the One Piece manga. His character has overcome many challenges but hasn't met his demise. The manga keeps him going strong on his adventures.
Zoro.to might have manga, but it's often associated with copyright infringement and potential security risks. It's better to use legitimate platforms for reading manga.
Glenn meets his demise in the comics during a particularly intense and chaotic event. The circumstances surrounding it are quite harrowing and have a significant impact on the story's direction.
Negan's death in the comics occurs at a specific point, but I can't recall exactly when off the top of my head. You might need to do a detailed search or refer to dedicated comic forums for the precise moment.
Iron Man meets his end in a particular comic arc where the circumstances are both intense and unexpected. It's a turning point that shakes up the entire comic landscape.