RNZ has made contact with Hone Kay-Selwyn's whānau, who refused to comment, saying: "Don told us, in time of raru (conflict), when the media call, say 'no comment'. So 'no comment'."
Robert Horne was shot by the 31-year-old Killer Beez gang member on Sunday night while leaving a car on Ponsonby Road.
Kay-Selwyn was found dead at a rural property in Taupō on Tuesday.
Police say at this stage they believe the two men did not know each other.