Update (09/06/21): Updated the later pictures to be more clear.
Jill walks into the culture tank room, and finds a zombie in a tank; with an appendage sticking out conspicuously. Must be the subject of some sick experiment.
About to put an end this creature's existence... she finds herself somehow unable to go through with it. The zombie isn't the subject of the experiment: she is.
Also a few slightly more wholesome Jill pictures.