Waikato Police are seeking help from the public as part of their investigation into the Robert Nelson homicide which occurred in the early hours of July 8.
Police are appealing for sightings of two vehicles potentially linked to the homicide, appearing on the reality TV show Police Ten 7 this evening to make the plea.
A dark coloured ute and a silver van or "people mover" were both seen at the time of the offending and are at the centre of the police investigation.
Nelson, 23, was shot dead at the scene and two others were seriously injured - his 21-year-old partner and a 17-year-old man who were also at the address.
Three offenders entered the property on Matthews Cres, Melville, around 12.45am and were met at the door by Nelson's partner.