Captain America's sidekick Bucky is one big and bad, bad boy

Bucky was rebuilt physically and mentally, gaining a bionic arm and turning into a Russian assassin.

What's a superhero sidekick got to do to get some attention in the comic book universe? Ditch your heroic past and go Russian assassin crazy.

There was a time when the only “certain” deaths in comics applied to Uncle Ben, Thomas and Martha Wayne, and Captain America’s young sidekick Bucky. However, Ed Brubaker dismissed that notion by bringing Bucky back via what is arguably the best comic resurrection to date.