Question: how did tybalt contribute to the tragedy?
Answer: Tybalt, in his bloodthirsty hatred of the Montagues, played a critical role in instigating the sequence of events that led to the deaths of Romeo and Juliet. The critical scene is act 3, scene 1, when Tybalt, after challenging Romeo to a duel, kills Romeo's friend, Mercutio, instead. This act drives Romeo into a rage.