Some twenty of them fought in this black strife,
And all those twenty could but kill one life.
I beg for justice, which thou, prince, must give;
Romeo slew Tybalt, Romeo must not live.

– William Shakespeare

Romeo and Juliet, Act 3, Scene 1. Lady Capulet, upset that her nephew Tybalt has been killed by Romeo, asks the Prince for justice. She doesn’t believe that Tybalt was killed in a fair fight and wants Romeo dead for what he did.