Lyn's oldest daughter, Shanelle Dawson, walked into a Sydney courtroom and spoke from the heart about the killing of her mother, the selfishness of her father, and the ongoing damage to her life as a result of the murder. Shanelle's extraordinary victim impact statement, delivered by her through tears, sorrow and anger, brought witnesses and even court staff to tears.

Lyn's siblings, Greg Simms and Pat Jenkins, shared their pain too, as Justice Ian Harrison weighed the sentence he will impose on convicted killer Chris Dawson, 40 years after Lyn's death.

To read The Australian's ongoing coverage of the trial, search 'The Teacher's Trial' or go here.

The National Sexual Assault Domestic Violence Counselling Service can be reached on 1800RESPECT. Lifeline can be reached on 13 11 14.