Please pray for my family

I. Fucking. Hate. Alzheimer's. My dad had another rage episode last night (these incidents have increased to about one a week, but this is the worst so far), culminating in him pushing my step-mother down the garage steps and pulling a knife on my step-brother. Last week-end, my dad & his wife had a blast on a week-end getaway. The week-end before, they came to visit us. How can he be so much who he's always been...and suddenly a violent stranger. He at the best hospital in the state's Alzheimer's ward for now. Monday morning, we will be meeting with his AD specialist to weigh our options. I am sad, scared, sick, angry, numb, and worried. I need your prayers right now. No one has seen or talked to him since the incident. I hope to God he is sedated, so that he isn't feeling alone, scared, betrayed, and angry. My family handled this exactly perfectly, and we are all on the same page. None of it is easy.