User blog comment:Master Sima Yi/Assassinews 03-03-'13 — Assassin's Creed IV: Black Flag trailer and screenshots/@comment-5542440-20130405084710/@comment-4829046-20130405164153

At least then you have an excuse to kill him honorably instead of just shooting him point-blank for good measure. Besides knowing Connor and Haytham, even if he did do something it wouldn't have mattered, they are freaking Demigods who can only be killed by one another.