How would you diagnose my father?

My father is from Germany and was a child during WW2. His father was Jewish and at age 8 he pleaded w/ the Nazis as they abducted his father from their home to a camp where he was killed. To say he's a psychologically disturbed man is putting it mildly. He's been emotionally abusive to my mother, myself & 2 older siblings all our lives. He seems to delight in putting us down & telling us we'll fail at any endeavors. He has complete control & mental domination over my mom (married 42 yrs). It appears to be his goal & bring him much pleasure in tormenting or seeing us suffer mentally. Can this be a result of PSTD or did the abduction and ultimate death of his father induce psychosis in him? He doesn't hallucinate or hear voices. He's extremely controlling, locks everything up (phone, food, money, etc) He's inflicted emotional damage on the whole family. I just want to know if he's psychotic & completely void of conscience & emotion or is there another diagnosis to explain his behavior. He of course thinks he's normal & would never seek treatment!