I've given it some thought and I'm leaning towards ... Drakkosha.
Argument 1: Drakkosha is half-Dragon (scales) and half-Cat (cats, as everyone knows, love fish). It's very likely that the scales could belong to her.
Argument 2: Drakkosha is a well-known artist on the forum, and while shooting at Zubr at night, she could easily have forgotten a jar of water at the crime scene.
I think that, in the overall context, these are quite strong pieces of evidence that should be considered.
I have a question for the organizer: can eliminated players participate in the discussions or somehow give hints to the remaining players?
Bow down and hear our cry,
Our earthly rulers falter,
Our people drift and die,
The walls of gold entomb us,
The swords of scorn divide,
Take not thy thunder from us,
Take away our pride.
G.K. Chesterton: English Hymnal