Robert James (called James) Hayes

I am looking for my brother James Hayes.Full name Robert James Hayes.He left N.Ireland in 1986 and was never seen since. James disappeared in june 1986 we searched his room and could not find a passport I don't even know if he had one.We got a letter from him that year and a Christmas card and he said not to worry about him as he would be all right and that was it. My family and I emigrated to canada in 1999 and i would love to hear from him as I will not give up my search as this is my 5th attempt to find him .James is about 5ft 4in's tall and brown hair, he was born august 1965 in Ballymena N.Ireland.please help!