This looks like one of those crappy one issue stories where
Slade needs to find himself a sling blade.
He looks so lifeless! I don't think his healing factor has kicked in yet!
Back to the flashnow, Slade makes a deal to kill another crook. Maybe it's a crook. I don't think Slade is too particular. Slade kills him by blowing up the bomb that the crook threatens to blow up if Slade doesn't leave him alone. Slade walks away unharmed. But there's a slight catch.
Everyone else in the apartment building was killed as well. Who knows where the kid was hanging out to survive the blast.
I really hate this being the reason that Slade does what he does. Boooo!