Playing this now! FYI, tri-colored cats (like Clawdette!) are almost always female so I didn't even think it was weird that Jan would know the cat's gender. If I saw a tortie/calico kitty in a carrier I would also assume it was a female cat. Knowing the name was actually more suspicious to me.
Edit: I seem to have gotten stuck? I got the bathing suit, I've challenged all three suspects... I've called the boss, inspected everything... :(