Grieving family will 'never understand' decisions made by killer

Key points

• Family members of Samuel Liszczak have addressed Tyrone Russell in the Sydney Supreme Court as sentencing submissions began. Russell was found guilty of manslaughter in March, and Cory James Glass was found guilty of being an accessory after the manslaughter.
• Madison Wiggins asked Russell why he did not call Triple Zero and instead pushed Mr Liszczak's body from a moving vehicle. His mother, Dee Lianos, said losing her son had changed how she sees the world.
• Justice Richard Weinstein described the actions of Russell and Glass as unsophisticated. The sentencing hearing will continue on December 17.