Desdemona , Cassio said himself you gave him the handkerchief
Emilia mourns stabbing of Cassio
Iago has killed Roderigo. Cassio cries "Murder,Murder,Murder"
Othello shuts off the candles. He interrogates Desdemona and prepare to murder her. In this final of Act 5, Othello uses bowl of holy water to repent for sins. Desdemona confused, asks Othello "My lord what have I done to upset you".
Othello has murdered Desdemona and hears the voice of the maiden, Emilia.