the worst behavoir, point me in the right direction please

my 52 yoa brothter is suing my 88 year old mother. that is bad enough. the case has gone on for over a year and lots of money has been spent. it is not a petty matter.

but she just fell and broke three bones days before trial. the thing is he comes to visit her in hospital and sits amongst friends and associates who have taken her side. he simply sits amongst all these opponents, and whose suffer from his lawsuit, as if it were a day at the beach.

a speech therapist friend suggest he has a disintergrated mind. i can find nothing on the subject. i recognize him as a naricist or sociopath. i was wondering about his ability to casually interact with those who are on my mothers side with seemingly little shame or embarassement. does this behavoir have a name?

Hello mthk, welcome to Psych Central.

Sounds rather ruthless to be able to sue his own aging Mother and sit comfortably with opponents. Not a mental illness by the sounds of it but maybe a personality issue, you may be right with the narcissism. http://psychcentral.com/disorders/na...rder-symptoms/ and How to Spot a Narcissist | World of Psychology