Dementia Support Group
Dementia is the progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Particularly affected areas may be memory, attention, language and problem solving, although particularly in the later stages of the condition, affected persons may be disoriented in time, place and person (not knowing who they...

Sometimes, you have to push back and refuse to have the staff merely send him home. I would also talk to the doctor/psychiatrist that diagnosed him with his disorders.
He's had anti-psychotic meds and refused to take them. Got a whole bottle at home already.
The system is such a let down when you need them. I live in Canada, I was lucky they placed my paranoid, demented mom,.with Alzheimers too.
gentle hugs,
jazzy