Batman crossed a line during his big showdown with KGBeast this week.
Warning: this article contains spoilers for Batman #57!
KGBeast dealt Batman a serious blow last month when he came to Gotham and shot Nightwing through the head. The ongoing Nightwing comic is currently exploring how that injury has impacted Dickl Grayson, but this series has turned its attention to Batman’s quest for revenge. This issue features the big showdown between the Dark Knight and KGBeast, and only one walks away.
Source: IGN.com Batman Crosses a Major Line