I would like to know the key points in Act 4 ,Scene 1 of the play Much Ado About Nothing.

The scene takes a slightly more serious tone with the
setting before the marriage altar. Lies and rumor prevail, however. Claudio rejects
Hero, and Leonato believes Claudio guilty of taking Hero's virginity. Claudio denies
this and questions Hero about the man in the window from the previous evening. Claudio
swears he will never love again and Hero faints. Leonato believes the lies he has been
told and wants to die. But first he wants to kill Hero, if she still lives. Friar
Francis realizes that Hero is innocent, however, and he decides to pronounce her death.
Alone now before the altar, Beatrice and Benedick declare their love, and he agrees to
fulfull anything she requests. She tells him to kill Claudio, which he agrees to
do.