Two more corpses than were expected. He expected Tybalt to be there, but not Paris or Romeo. He expects Juliet to be there but she is not a corpse. Yet.
because he thinks he hears the capulets coming from outside and wants to escape before they find him
romeo
Juliet refused to go.
Friar lawrence is some what responsible for Romeo's death. Friar Lawrence gave the letter to Friar John explaining Juliet's plan to fake kill herself. But because of the plague (which was very common back then) Friar John was delayed and could not deliver the letter to Romeo in Mantua. Romeo found out from Balthasar that Juliet was dead (when really it was the poison and she was not dead). He then ran to the Capulets tomb to kill himself in order to be with her in heaven.
The Montagues and the Capulets end their feud at the tomb.
Juliet was just asleep because of a potion that Friar Lawrence gave her, but she looked to everyone else to be dead. She took the potion the night before she was to marry Paris and she continued to look dead for another 42 hours.
Because he knows Juliet is about to wake up and Romeo will not be there, since Friar John was not able to deliver his message.
Friar Lawrence requests a crowbar to open Juliet's tomb and a letter to write to Romeo explaining the situation with Juliet.
A letter was sent from Friar Lawrence to Romeo who had been banished. Romeo had not intercepted this letter, and after having knowledge that Juliet was 'dead' he rushed to the tomb.
Friar Lawrence, Romeo and Juliet's confessor. He helped them throughout their journey together.
The Watch. Romeo finds her and thinks she is dead and kills himself. Then Juliet awakes and finds him dead. The Friar returns and tries to convince her to leave the tomb with him but she refuses. The Friar hears the Watch coming and flees the tomb. Juliet stabs herself. The Watch enters the tomb and find Paris, Romeo and Juliet all dead. The Prince, the Capulets, and Lord Montague arrive. Balthasar and the Friar explain what has happened and they all make up.
The Capulets' Monument is the family tomb or crypt, where they are all buried.