After the sentencing, one of the victims told the Herald she finally had closure on incidents that had haunted her for decades.
"We're no longer scared of him," she said through her tears, as other supporters hugged each other and cried.
"It's been a big cloud over our heads forever and it's like it's been lifted."
Bradley is guilty ofn four counts of rape, two of indecent assault, three of performing an indecent act, and one of inducing a girl to perform an indecent act on him. He was found not guilty of one indecent assault and one rape.
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Jury deliberating on historical Porirua rape, sex assault charges from the 60s and early 70s
During the trial, which began on Monday last week, jurors heard Bradley offended against both girls on a number of occasions between 1960 and 1972. The earliest charge is dated between 1960 and 1961, when the complainant was about 7 or 8 years old, and Bradley would have been 13 or 14.
Bradley moved to the US when he was a young man and lived there permanently until a few years ago when he moved back to New Zealand.
Upon finding out he was living in New Zealand again, the victims contacted police about the historical allegations.
Defence lawyer Wayne McKean said in his closing address to the jury on Monday that Bradley did have sex with the second complainant, but it was consensual. The jury's did not find this to be true.
Judge Denys Barry convicted Bradley and remanded him on bail a Whangarei address until May 28 for sentencing.