Final answer:
Yes, the statement is true. In Oedipus Rex, much of the brutality occurs off stage and is described by a messenger.
Step-by-step explanation:
The statement is true. Much of the brutality in the play Oedipus Rex occurs off stage and is described by a messenger. Examples of this can be seen when the messenger describes how Oedipus blinds himself and Jocasta kills herself. In Greek theatre, violence often happened off stage and was then reported to the audience.