I'm wondering about this too. I guess we'll have to wait until Part 3. One other thing that went wrong here - through no fault of her own, the mom was in a di

I'm wondering about this too. I guess we'll have to wait until Part 3. One other thing that went wrong here - through no fault of her own, the mom was in a different room with the brother. She knows what the patient normally takes, and would likely have started asking questions when she saw her son taking way more than what he usually took.