There’s a battery (for electric accident kills) outside the Sushi bar area where that one guard makes a call talking about Nails. I don’t know if that was there before or not.
Also. I’m sure this could be a bug, but IO should NEVER fix it. It’s pretty bad-assed.
Edit: Maybe not a bug since it does make sense.
A glowing icicle (lethal melee item). Of course, best seen when in dark areas.