He was wearing a green long-sleeved top with white stripes on the sleeves.
Police also described a .17 HMR calibre cartridge case found at the scene, which they believe will lead to Ms Hollis-Brown's killer.
HMR stands for Hornady Magnum Rimfire, further described as a rim fire cartridge, primarily used for mid-range shooting of game and targets.
Detective Sergeant Stephen Smith told the TVNZ programme that “not a lot of people own those types of firearms or use that type of ammunition”.
He also talked viewers through the final moments before Ms Hollis-Brown's death.
“Chephar was visiting the house in Centennial Crescent,” Det Sgt Smith said.
“There was a knock at the door, and another one of the occupants has gone to answer it. Chephar's gone with her.
“There was a bloke outside and they have a discussion, a slight argument.”
Det Sgt Smith then described how the man ran back to a car parked outside.
“Two shots were fired before a man fled in a vehicle parked outside.”
The vehicle was described as a dark coloured sedan.
Police were called to the house at 3.45am to reports of a woman being shot.
“Chephar had not realised she had been shot immediately, but she went back inside with the householder and she collapsed,” Det Sgt Smith told the programme.
“The mother of one was dead when police arrived, and a homicide investigation was launched.”
Police have called the death an “absolute tragedy” and a “senseless killing”.
“This case has been active for four months now and we need to resolve it,” Det Sgt Smith said.
“The family need some closure on this tragedy.”
Anyone with information that can help identify the killer should call 105, or the Crimestoppers number 0800 555 111.
