User blog comment:Pijuyo2/Deceased Characters (final version)/@comment-3305911-20101230042932/@comment-3127363-20101230182118

Here's a wrap of everything:

Cable was killed at the end of the Xmen's latest event, I think, by Bastion or his minions, but I'm not sure.

Sentry killed Ares at the end of Siege, and Thor killed Sentry in turn.

Daredevil killed Bullseye during the Shadowland event, because Daredevil's soul was corrupted by some demon or something.

Wolverine killed Sabretooth with the Muramasa Blade, which nullifies healing factors, and he also killed Omega Red in the same way.