So sorry for your loss, he sounds like he had full and happy life even with he's illness thanks to you. [It always helps to talk.]
I'm not religious but i hope he find's a place in heaven, he deserves it.
Laganas is a nice place but very clubby, with lot's of students there for the night life, stayed there for a week last year, if you go there try the Blue sea restaurant right on the beach, family run and great food at a reasonable price.