Philip Polkinghorne must wait at least three more days - before a jury rules him innocent or guilty of killing Pauline Hanna

The jury's gone home after telling the judge they couldn't reach a decision today - having deliberated since 11am.

They won't sit tomorrow because of a juror's prior commitment, and will recommence 11am Monday.

The Herald's Michael Morrah has been in court.

He says Polkinghorne reacted emotionally this morning as the 111 call after Hanna died, was replayed for the jury.

He says Polkinghorne was so upset the judge paused proceedings.