So... what exactly happens in the last few panels of this book? Does Batman kill The Joker, or what? I'm totally confused.
If you mean the "strangling" scene, it is simply Batman restraining the Joker as the police (seen in the distance) arrive. The focus on the water (in the comic-book equivalant of a panning shot) is not to disguise anything nefarious about Batman's actions, but is merely a reprise of the opening of the book. Anyways, aspects of the story have been incorporated into the main Batman titles - meaning that the events depicted are (mostly) accepted as canon. The true identity of The Joker is not the one seen in the book though - Denny O'Neil was VERY clear about that particular point soon after its' release.
The Joker is shown to be killed by Robin in Batman Beyond: Return of the Joker. If he was killed twice that would be inconsistent (although they might do it anyway).
My personal interpretation of the joke he had just told: The Joker is the first inmate in the asylum, obviously crazy. Batman is the second inmate. He makes the sane decision for reasons that are crazy. Batman laughs because he finally sees the funny side--he knows now that he and the Joker are more alike than he ever wanted to admit. If he couldn't kill him before because of his moral code, be certainly can't kill him now, because he identifies with him, if only a little bit.
I think he kills him. The story doesn't make any sense at all if he doesn't kill him. That's the "joke"--that the Joker misreads Batman so badly. I disagree that the point is that Batman doesn't kill--the point is that Batman does kill.
I realize that if the story is to be canon, then Batman can't have killed the Joker here, but this would hardly be the first time that the original intention of a story was reversed for canon.
That's just my take on it--the ending was probably meant to be ambiguous.
I think he kills him. The story doesn't make any sense at all if he doesn't kill him. That's the "joke"--that the Joker misreads Batman so badly. I disagree that the point is that Batman doesn't kill--the point is that Batman does kill.
Nope Lisa, Batman still doesn't kill. He just gets warped back to the stone age or something.
Well, Batman killed lots of people before the comics code.
I never thought of Batman as unwilling to kill for ethical reasons--quite the opposite. He's a vigilante, and is willing to break the law when he feels that's the right thing to do.
Well, the problem with retconning is that you have to talk about what the situation was at one particular point in time.
There have been many things, particularly in the DC Universe, that have simply been retconned out of existance and never mentioned again. In any event, they don't deal with this. If it was accepted that he killed people and then stopped as soon as he met a more formidable foe, it was never mentioned again. For this reason, it's commonly believed that he never did.
There's always been a tension between vigilante and lawman in Batman, but I think at the time this book was written, people would have no problem at least accepting the possibility that Batman would kill the Joker.
I interpret the joke as a metaphor of what Batman offers him.
The asylum means madness, and the two inmates are Batman and the Joker. The outer side of the asylum is sanity. Since the first inmate crosses the gap with no problem, it means that Batman might be a bit crazy, but he operates normally in sanity's side.
Batman offers to rehabilitate the Joker. This would be the "light bridge" the first inmate offers to the second. But the second inmate doesn't trusts him, thinking the first one will turn it off as he's halfway across. This would mean the Joker is afraid of being abandoned as he crosses the gap between madness and sanity.
That was pretty much my take on the joke at the end.
In regards to the "Batman never kills" debate, what about "The Dark Knight Returns" by Frank Miller. True, he doesn't really kill the Joker here (breaks his neck), but the Joker essentially dies at his hands. Is this book not really canon either?