Yeah. If he had just been real skinny, or even just coughed up blood only before he died, you could say it was just drugs and maybe TB. But when you add the sterile aspect into the mix, and the year he was born (I can't even imagine how ass backwards they were in 1943 regarding CF diagnosis/treatment), it really starts to smell like CF. The only other thing that would kind of seal the deal would be if he had bad booty oil after fatty meals or not...But then again, like I said before, some people are much more pancreatic sufficient than others.