I Have Male 70 Year Old Friend With Parkinson's, They

I have male 70 year old friend with Parkinson's, they are vegan, slim and do high intensity aerobics 4 times a week, they adhere to a strict daily schedule, employed, yet have severe anger, abuse and control issues. They have no social contacts. I'm a 25 year younger female victim of this persons abuse, and almost lost my life. I ask is this a result from Parkinson's or other related neurological disorders never diagnosed?