So Deadpool goes around killing every major hero in the history of literature. Fuck it, why not?
Deadpool Killustrated #1 is the first issue of what is supposed to be the sequel to Deadpool Kills The Marvel Universe, but if you haven’t read it it’s not like it really matters. The theory behind the whole thing is that, in a non-616 version of the Marvel Universe, Deadpool has become aware that he is a fictional character, and he has killed all the other Marvel heroes to set them free from the tyranny of fandom, and yet he is still looking for a way to escape the world of fiction, and blah, blah, blah. Does you really give a shit?
The point is that this book is an excuse to have Deadpool use some truly impressive firepower to kill heroic characters from classic literature. So to say that Deadpool Kills The Marvel Universe is the origin of Deadpool Killustrated is arbitrary. You might as well say that the origin of Deadpool Killustrated was writer Cullen Bunn, a six pack of Sam Adams and a pinner joint.
And I really don’t care. Because no matter why it is here, while it is not quite as well-thought as its predecessor (which is like saying that cotton candy isn’t quite as nutritious as Peanut M&Ms), it is big, stupid, goofy fun.