Justice League will feature a more "comic book" Batman,

Aug 17, 2017 13:24:36 GMT gromel said:

He broke Joker's neck to paralyze not kill.

Interesting, from a rational interpretation of the dialogue one must arrive at an entirely different conclusion:

Batman after brutally piercing Joker's eye:

Batman: No more! All the people I've murdered... 
... by letting you live.

Joker: It's finally here, isn't it? The moment we've both dreamed about! 

Aww, the smoking gun! In a court of law, well, this would be irrefuatble evidence that you intended to KILL the person. Apart from this, the legal concept called Dolus Eventualis aplies. You may not really have wanted to kill, but you know and accepted that your action may result in the death of your victim: murder.

Regardless, the POINT: incredibly fucking brutal for a CBM - and probably the most famous Batman story ever!