Another likeable character dies. Soon we'll be left with asshats.
That said, the author didn't even mention how sealed cans could be tampered with and poisoned in the chapters leading to this. Neither is there a reason why one of the two flavours of canned fruit is dangerous. They say that there wasn't time for both flavours to be poisoned, but why? Why is there enough time to poison all the cans of the same flavour? Why was there enough time to poison more than one can? Why would the monkey poison all of the same flavour rather than randomly?
Also, Saotome is the target of some supernatural joke. Dying people keep telling him to smile for some reason.