Which two key events had a direct impact on the tragedy at the end of romeo and juliet

Romeo killing Tybalt and Friar John being quarantined are two key events that impact the final tragedy. Romeo faces banishment and separation from Juliet after he kills Tybalt. Tybalt’s death also results in Lord Capulet’s decision to force Juliet to marry Count Paris. When Friar John is quarantined due to the plague, he is unable to deliver Friar Laurence’s letter to Romeo. Romeo believes the news that Juliet is dead and makes the hasty decision to kill himself to join her in death.

it can be many reasons such as they could want they're family to live and explore more two. might just want to be nice.

3.some say for the greater good or future.

4. they might want to have they're baby,kid,family explore more. people just sacrifice.

true fact:

someone is sacrificed everyday.

hey! what was the rest of the question?