Watanabe Kazuma said:I did, but like others have mentioned in here the lack of any in-game information stops you from knowing when 'accidental' deaths occur.
I was positive I completed the game without killing anyone but never got the achievement.
Yeah a "flatlining" indicator could have been a tasteful yet suitable addition to your HUD.
Though as far as I can tell the only thing that would cause "accidental" deaths provided you didn't flat out kill them is letting the body fall any noticeable height or if they're shot or blown up after the fact. I actually left a bunch of bodies in electrified water and they never died.