It's not gout.
Gout doesn't kill people; it causes arthritis and excruciating joint pain, but in this case this was probably due to the fact that the patient had been on thiazide diuretics for a long time, and one of the documented side effects of these is hyperuricaemia and gout. Changing his medication might have given this patient some relief.
It's something to do with the renal system, though. Try again.