At least two cars hit Israel Jack as he was lying on Te Ngae Rd but police are still no clearer to finding out why he was on the road.
Mr Jack, who was known as Issy, was killed on Sunday, August 18.
Rotorua police have confirmed the 20-year-old was struck by at least two vehicles and have renewed their appeal for information.
Police received reports at approximately 4.25am reporting that a man had been hit by a vehicle. That vehicle was at the scene when police arrived and has been examined.
As a result of publicity in the Rotorua Daily Post another driver approached police a couple of days later to advise that his vehicle had struck something on Te Ngae Rd that morning.
An examination of his vehicle has now confirmed it also struck Mr Jack.
From these examinations and witness reports police believe Mr Jack was lying prone in the road when struck by both vehicles.
"There are still a number of questions that need answers; not least why he was lying in the road," said road policing manager Senior Sergeant Brendon Keenan.
"We know he had walked approximately 6km from town. Although intoxicated all witness information suggests he was sticking to the footpath.
"He was spoken to at the Caltex Service station at the intersection of Te Ngae Rd and Owhata Rd and also by a police officer in that same area. In both cases he appeared to
be coherent and capable of completing the short walk home.
"One occasion when he was seen to rest he had done so safely sitting on the footpath. We need to establish why, so close to his destination, he would be lying prone in the road."
Police want to hear from anyone who saw Mr Jack that night who hasn't yet spoken with police, or has any information that may assist the ongoing inquiries.
Mr Jack was wearing a black t-shirt with the letters L O W E R in large white script across the front. He was 5ft 8ins tall and athletic build with no noticeable tattoos.
Anyone with information is asked to contact Rotorua police on 07 348 0099.