[Jan-Poo]

Spoiler for nanjo episode3:

I personally don't see why the fact that Nanjo has a sick grandchild should be suspicious. I mean, it's a sad thing but it is not that rare. And if this was some kind of secret he certainly wouldn't have told us. Rather than that I wonder why he even mentions that. He retired from his position of head of the hospital of niijima and left it to his son and he spend time playing chess with Kinzo. How exactly his being alive has anything to do with his grandson sickness? Unless he's being generously rewarded for seeing his medical counseling being ignored, and such "reward" is needed to cover medical expenses... but with a father (or uncle) who's the head of an hospital is that even a problem for that child? °°

Anyway even if we assume that the sick grandson is a reason for Nanjo to become a murderer, we should not forget that we are talking about several billion of yens, sick grandson or not, such sum of money is reason enough to suspect everyone.