In Chronicle of a Death Foretold the murder of Santiago Nasar is motivated and justified by honor.
When Angela names Nasar as the guilty party and the reason she has been returned from her marriage bed, her twin brothers must protect the honor of their family. After they commit the act, the courts (as well as the priest) justify the murder because it was committed to protect honor.
Also, the murder is allowed to happen by the townspeople, at least in part, because the situation concerns honor.
This warped sense of honor and violence and revenge is rooted in the dichotomy, or two different ways, men and woman are judged concerning sexual relations. Men are praised for making love with as many women as possible, but women are harshly judged for any sex outside of marriage. Men can be playboys, but women must be virgins before marriage. Angela is, in a sense, an idol or possession. When Nasar "defiles" her, he dishonors her family.