POLICE have seized a flatbed truck they believe was involved in a fatal hit-and-run collision with a motorcyclist at Waterfall on Wednesday.
Paul Snepvangers, 58, was found dead beside his motorbike in the Royal National Park about 3pm.
Mr Snepvangers was a father of five and a grandfather to eight children.
A police spokesman said today a property on the Princess Highway at Helensburgh had been searched and a truck seized. A 52-year-old man was helping with inquiries.