Animal hospital anomaly

There are many anomalies, but some signs can be described.
blank face
three eyes
.twitching
.wrong photo
unmasked werewolf
completely black body

Little is known about Officer Duckman's past. He is a police officer working with others to find the infamous serial killer, Barney. Officer Duckman, through unknown means, obtains a photo of Barney, which the player initially takes at Barney's request. It is assumed that Barney left the photo for the officer to find.

Barney appears as a white, rabbit-like creature with black, slit-like eyes and a mustache. He wears a brown hat and plaid brown pants. In his Anomaly form, he has a large mouth with sharp teeth and large, black, empty eyes, each with a small white dot in the center, and he holds a knife. Initially, Barney comes across as very friendly and respectful. In many of his dialogue, he refers to the player as "friend," and whenever the player helps him, he either thanks them or offers some kind of praise (e.g., "You're the best..."). In almost every message, Barney refers to the player as a friend, demonstrating a genuine connection with them. Despite this, he exploits the player as often as possible and appears to be very demanding, becoming upset if the player refuses his requests. He is heavily dependent on the player for favors and feels like a parasite of sorts. He is also a Syrian assassin.
Every shift, he comes to the player and asks for coffee. He needs it to take a break from work, specifically, from killing.