In the weeks following the attack, Sachs acted shocked and hysterical, and spent each day by his brother's side in hospital.
'He would cry and say, "Landon is 8 years old and he doesnt have a dad,"' Sarah Verbeek, a former girlfriend, told People last year.
'He'd say, "I can't believe somebody killed my parents."'
Ashton, who had no previous run-ins with the law, was arrested in March 2014 after police determined he was the 'lone suspect' in the murder.
They found a semi-automatic weapon in his car and phone records placed him in the area around the time.