Police have put the call out for dash cam footage as investigations continue into last week's fatal six-vehicle crash on the M1 at Mooney Mooney Creek.
Nineteen-year-old Jack Langford and 52-year-old uncle Adam lost their lives last Tuesday afternoon, after their ute became caught up in the incident that began when a truck hit a car north of the bridge.
A 30-year-old truck driver's been charged with a string of dangerous and negligent driving charges, and is facing Gosford Court in two week's time.
If you can help out call Crime Stoppers on 1800 333 000.