Batman: Gotham Knights #26 (2002)

Bruce Wayne: Murderer? - Part Ten: Innocent Until / Bruce Wayne is Batman
Bruce's arrest and his lack of effort in his own defense is raising doubt in the hearts of those closest to him. Nightwing refuses to doubt, and won't hear it from others, but Robin, Oracle and Alfred have all experienced Batman's darker, more erratic moods lately as he drives out all who are close to him. Is it possible that Bruce actually killed Vesper?
Release Date: 2002