Co-defendant Natalie Jane Bracken, 31, was found guilty of being an accessory after the fact to wounding Hunt with intent to cause grievous bodily harm.
Diane Hunt, mother of slain Constable Hunt, was surrounded by family and supporters outside the High Court at Auckland following the guilty verdict.
"Listening to what happened to Matthew and Dave on Friday the 19th of June 2020 can't be described in words. The loss of Matt has been made all the more traumatic by having to hear every possible detail that happened that day," Diane Hunt said.
Constable Hunt was the 33rd New Zealand police officer to be killed in the line of duty when Epiha shot him four times with a military-style semi-automatic rifle.