Police have new leads on the four-year-old cold case of missing Waikato man Rick Hayward after asking the public for help on Police 10-7 last week.
Frederick "Rick" Hayward, 67, was last seen leaving his home around 5pm on September 2 2013, with the intention of travelling to the family bach in Raglan.
His red car was found empty at the summit of Old Mountain Rd, halfway to Raglan.
Police now believe something "sinister" happened to the married father of two - with one theory being that he was the victim of a hit-and-run, and someone disposed of his body.