The mental - and penal - anguish for her is as a direct result of his light jumping. He's out of the game now, through a lack of adherence to the highway code that covers all road users.
If he hadn't - she would have sailed through the lights, too fast and on the mobile and she would have been just another that does so every day without incident.
I am certainly not condoning this behaviour, but it goes on every day and only good fortune prevents more accidents.
Accidents happen - and in a lot of cases they are preventable, but they will happen nonetheless.
What will happen to her four year old daughter?