Balthazar tells him about Juliet's death and burial.
After Romeo injured Paris. Paris told him "Lay me in the tomb with Juliet". Romeo agrees and put him in the tomb with Juliet.
Romeo's body lies in the tomb the entire time Juliet is there in Shakespeare's play "Romeo and Juliet."
Romeo kills Paris outside Juliet's tomb when he mistakenly believes Paris is there to harm Juliet's resting place.
Paris is at the tomb of the Capulets where Juliet was laid to pay his respects to Juliet. Romeo runs into him there and they end up in a fight. Romeo kills Paris.
In the Capulet tomb.
Romeo
Paris thinks that Romeo is there to vandalize or dishonor Juliet's body.
He goes to Verona with his trusty servant Balthasar, who he tells to wait outside the cemetery. He then goes up to the tomb by himself and kills himself not realizing she was faking her death
In Balthasar's dream in Romeo and Juliet, he dreams that he sees Juliet lying dead in a tomb. This foreshadows the tragic events that unfold later in the play, where Romeo finds Juliet seemingly lifeless in the Capulet family tomb.
He drinks poison, in Juliet tomb to "die with her", thinking Juliet was really dead. And Juliet stabbs herself when she see Romeo dead.
Paris.
Romeo said that he needed to go into the tomb to recover the ring he had given Juliet. However once there he drank the poison he had bought.