I believe that the [hesitation mark, a slightly larger gap] subjects are drugged when they are taken, either in the food they are served for dinner or by injection from a nurse. When I awoke after, it was still night and I was very disoriented from whatever drugs they'd given me. This seems to be the usual time, other patients had taken it upon themselves to help locate and care for the victims.

If you want more specifics of the event you'll have to ask in person.