Bill triumphed over John in the boxing ring because he fought cowardly.

Who is "he" in this prior sentence?
John
Prince Goro lectured Cano about the greatness of the emperor, because he was ignorant on realizing how powerful he really was.

Who is "he" in this prior sentence?
Cano
Jerrica saw the guard as she snuck past.

Who is "she" in this prior sentence?
Jerrica