"It was this young fella coming back from work who hit the guy and he was pretty distraught about it ... he did try and help the man," he said.
Mr Troy said the investigation into the circumstances of the crash was continuing. He said there were varying reports about Mr Maika's possible movements and police were seeking anyone who may have seen him on the day of his death.
"We are after people who may have seen this guy walking around the area throughout the day. We have had different reports about this guy walking around the area about six in the morning and around lunchtime."
Mr Maika was the eldest son in his family and one of four siblings. His funeral was held yesterday.
His death has been referred to the coroner.
Meanwhile, the farm worker who died in the Waikato when his car hit a bank, rolled and struck a power pole at a rural intersection east of Waharoa has been named as Gene Stantiall, 26.
Mr Stantiall, who was able to get out of his car, died at the scene last Thursday.
He became a father of a young son last month and his death is the 50th on Waikato roads this year, which takes the toll to two more than at the same time last year.
Anyone with information about Mr Maika's movements last Tuesday can contact Constable Tina Mitchell-Ellis at the Taupo Police Station on (07) 378 6060.