Waikato police are cold-calling Paeroa delivery people and trying to track down occupants of a white car as they piece together what was happening in the hours before pizza parlour owner Jordan Voudouris was murdered.
Mr Voudouris, 55, was found dead at the back of Mykonos Pizza and Pasta on Paeroa's main street at 6am on Monday, June 18.
A police team of 30 are working on the murder investigation and are appealing to the public for any information about a small, white, four-door car with an unusual black passenger door, which drove through Paeroa about 2am on the day the popular pizza man was found dead.
Detective Senior Sergeant Mike Whitehead, who is leading the investigation, said police believed the occupants of the car might provide some insight.
The latest clues come as police review security camera film as part of the consolidation stage and check and recheck witness statements and other evidence.