If the director is surprised that he left, and neither the residents nor the medical staff know about it. neither the management - maybe it's worth checking his home address or the address of the guardians? And immediately, and not when they hear suspicious things about him.
If you think about it, the pharmacist is to blame for his own death. It's one thing to substitute medicine once or twice, but not more often than necessary so as not to harm patients, another thing is to steal them completely. Plus, they didn't show us his brother - what he thinks about it, and whether he found out at all.
The killer was visible from the first frame, but the atmosphere is cozy - Auntie, Rex, Jessie and "it's so great here, I want to grow old sooner!" A good rest from all sorts of action games and psychological muddles)
And the whole series is dedicated to touching Rex)))
Plus, they didn't show us his brother - what he thinks about it, and whether he found out at all.
A good rest from all sorts of action games and psychological muddles)