Police say at one point the vehicles went on to the footpath, endangering pedestrians.
"He was dying in front of us… I asked, 'Has anybody got a sharp knife?'"
A photo has now been released of victim Kelly Alex Donner.
But for some families it's already too late to escape.
"It would be in your best interests to come to us before we come to you."
Police are following a number of leads including CCTV footage.
Jason Trembath is currently on bail as he awaits a court appearance.
One person is dead and another is seriously injured after a motorcycle and truck collided in Hawke's Bay.
It hunted him down, gored him into the ground - then circled for the kill.
The bike collided with a truck, killing one and hospitalising another.
Thirty-two-year-old Pierre Paludet hasn't been seen since Friday morning.
Two children have been recovered, but a search continues for the woman.
New Year's Day was Hawke's Bay Hospital's busiest on record, and demand has barely lessened.
Hawke's Bay Hospital is asking people with minor injuries and illnesses to stay away from its emergency department, which is operating at capacity.