[Jan-Poo]

Nah as renal said

Spoiler for nanjo nanjo:

A weapon was readied, and he was killed with it from point-blank range in front of him
Unless Eva Beatrice is distorcing the truth, sedatives cannot really be considered a "weapon" that can be readied. There should also be a stretch about the meaning of "killed", If someone gets poisoned does he get killed at time he dies or at the time he get poisoned?

To me there are substantially two equally probable (and umprobable) theories

1) The real Nanjo died before the events described, the current Nanjo is a fake

2) Hideyoshi was still alive. When Eva crouched near him she faked the mourning and actually gave him instructions. However how exactly Hideyoshi died soon after killing Nanjo is a big mistery.