Husband-to-be and honours graduate who died saving drifter

. . . follow-up to tragic story about two Irish men who had everything to live for but died saving the life of an English man who walked on his family ten years ago to travel and odd-job his way round the UK - where "home" was once a bail hostel - and Europe. His mother says she hasn't spoken to him for two years, and she doesn't even know where he is.