What does Oedipus ask Jocasta at the point when he begins to suspect that he is Laius's killer?
Oedipus questions Jocasta about her husbands murder when he begins to suspect that he is Laius's killer. He asks where the murder occurred, what crossroad, how long ago it was, and what did Laius look like.
Oedipus asks Jocasta where Laius died and how long its been since Lauis' death. For more, check out http://ablemedia.com/ctcweb/netshots/oedipus.htm.
Oedipus asked Jocasta about his birth which told him who the Laius's killer was. The answers he received proved he was the killer.