South Island toddler Amber-Lee Cruickshank disappeared 25 years ago from a small town on the shore of Lake Wakatipu.
Despite exhaustive and repeated searches, there has never been any sign of the little girl.
The Herald senior crime and justice reporter Anna Leask investigated the cold case in a bid to generate some answers for the 2-year-old's family.
In October, to mark the 25th anniversary of Amber-Lee's disappearance, the Herald released Chasing Ghosts, a six-part podcast series, news feature and mini-documentary about the case — one of New Zealand's most baffling mysteries.
Amber-Lee's mother, Nicola Cruickshank, decided Barrett was the prime suspect a decade ago.
She focused on him because of psychic readings about her daughter's fate, but police particularly say there is no evidence whatsoever linking Barrett to the case.
Police were eventually able to list every person who owned property there and where they were that weekend.
They also tracked everyone who was at the lake, the pub, or just passing through Kingston.
They soon concluded that if someone had taken Amber-Lee, it had to be someone close to her — someone with the opportunity, someone she wouldn't be frightened of, someone she knew.
The first officer in charge of the case, Warwick Walker, said police narrowed their focus to those who were around the house Amber-Lee was staying at when she vanished, specifically, the group who were at the barbecue.
RETIRED DETECTIVE WARWICK WALKER You always look close first, then knowing that she wasn't in the lake and if we accepted that she hadn't stumbled off and not been found by search and rescue, then you're going to look at that close group — so yes, James, Nicky, the people whose house it was and people that we knew had been in and around that group involved in the waterskiing and the picnic-type atmosphere that was going on.
They became, really, a key focus because, you know, it came down to who was going to take away a little 2-year-old girl.
I wanted to know whether Nicola Cruickshank and her then partner, James Gill, were considered suspects, 25 years after Amber-Lee's disappearance.
I asked the current officer in charge of the case, Detective Sergeant John Kean.
ANNA LEASK And of the people at the house with her, her parents and the friends who were in Kingston that day, who have you ruled out?
Has mum been ruled out? Has James been ruled out?
DETECTIVE SERGEANT JOHN KEAN Well, it's very difficult to say you can conclusively rule a person out that was there at the time Amber-Lee went missing.
But the police are satisfied, as best we can be, that Nicky and James have got no involvement in the disappearance of Amber-Lee Cruickshank.
Police believe she told them everything she knew before she passed.
In the early days of their investigation, police were particularly interested in one person at the barbecue — young Damian Angus.
Walker, now retired from the police for 20 years, remembers how that happened.
WARWICK WALKER There was a young teenager who was down in among that group.
From talking to people within the group who were there and observing what was going on, they indicated that he seemed to have, he seemed to show an unusual interest in Amber-Lee.
Now, by that I mean that normally you're not going to get teenage boys who are going to want to spend time with 2-year-old kids ...
They just sort of said that he had spent some time and showed some interest in her, and I guess given what we knew about that particular individual, that just sort of seemed unusual.
A few people commented on that, that it was unusual and yeah, we thought it was unusual and he did become a person of interest for us.
Walker told us that Damian Angus was interviewed three times and changed his story about where he was when Amber-Lee vanished.
Like Dette, he was also known to police.
To be absolutely clear, Angus has never been charged in relation to Amber-Lee Cruickshank.
WARWICK WALKER The young man that we're talking about said that he had gone off (to) one place when clearly we found out he'd been somewhere else.
ANNA LEASK Looking at this young person, what did police do to look into him and see if there was any way he could've taken Amber-Lee? How closely was he looked at after she went missing?
WARWICK WALKER Oh — very, very closely.
So he was interviewed a number of times, his place searched, a caravan that we knew he access to that was away from the house — that was searched both physically and scientifically.
There was some surveillance on him to see where he went and the sorts of things that he was up to.
So yeah, there was quite an intense focus on where he had been.
He didn't have a driver's licence but he had access to a number of vehicles that he used frequently so we looked at those vehicles, we looked at where they might have gone.
So yeah, there was a lot of scrutiny of him.
ANNA LEASK More so than anyone else that was close to Amber-Lee that day?
WARWICK WALKER Well, yes, certainly in the time that I was involved in the file which was for a year afterwards. There was far more time spent looking at him than anyone else.
Now that doesn't mean to say we didn't spend a lot of time looking at others — we did. But in terms of ranking of suspects, if somebody has taken Amber-Lee, he was the number one suspect.
ANNA LEASK Given he was young at the time, could he have done something to Amber-Lee and hidden her?
He tells me he was babysitting when Amber-Lee went missing and I press him on that, asking him specifically what he was up to at the time.
The conversation then takes an uncomfortable turn.
Angus tenses up, glares at me, and after a couple of seconds says, "What do you mean, where was I?"
I tell him he'd already said he was babysitting so I just wanted to know more about that.
He talks about mowing some lawns that day, then walking through a paddock with someone named Jeremy and Belinda Sayer pulling up in a car and asking if they had seen Amber-Lee.
Angus tells me the last time he saw the girl was when he helped her off the boat earlier in the afternoon.
I won't disclose the specifics of what he actually said but he had just in general terms gave different versions of where he was and what he saw around the time leading up to and the time after Amber-Lee disappeared.
But he was certainly involved or had knowledge of the search phase later that evening.
ANNA LEASK Now, he's told us that he was babysitting when Amber-Lee went missing.
Is that what he's told police in his most recent explanation?
JOHN KEAN No.
ANNA LEASK Is it close to what he's told you or is it a complete different story?
I think you have to put in mind that, I'm not sure when you spoke to him but this incident was 25 years ago and while he gave differing versions he was a 14-year-old boy that was being spoken to by police.
So, I'm not sure why he thinks he was babysitting now, but at the time that was never mentioned so I don't know why he would say ... he may have thought he was babysitting.
ANNA LEASK He's told us that he was interrogated to the point that he felt it would be easier to confess and just say he did it. Was there ever, when you were watching that interview, did you ever think he was about to go that way?
JOHN KEAN In fairness, it was a long interview and I think at the end, throughout the interview, they just wanted to get the truth from Damian and if he was involved to explain why whatever had happened had happened.
The difficulty is, he's been interviewed three times. He's given explanations of his movements of that day and that have been checked or clarified as best can be. Yes they are different to some degree but that's where it sits.
ANNA LEASK He's adamant that Amber-Lee's wandered down to a stream, fallen in and drowned.
He said that stream was flooded at the time and divers just didn't search far enough.
What do you think about that?
JOHN KEAN That's not correct.
No, that's ... no. I explained in the previous interview that no, if Amber-Lee had gone into the water she would have been found either on that night or the following day.
And that's all to do with gases in bodies and bodies rise and bodies sink. But she would have been found.
Also, there was a man who was about 100m from shore in his rowboat fishing — he saw nothing, he saw no one.
I know the stream he's referring to and it was spring thaw and it was in flood — but no, that's not a possibility.
In a Facebook message a couple of weeks after we spoke Angus said he still did not want to be recorded for the podcast.
But he did want to say something:
DAMIAN ANGUS FACEBOOK MESSAGE I hope something comes of it if she isn't in the lake and something else happened to her would be good for her mum to have closer and if someone did something to Amber I'd like to know because I'd f***** have something to say to him or her after all the s*** this has caused a lot of people.
If it's a crime you're looking for perhaps you need to look at the grandmother and Mother last week who were so busy getting sh**faced that their baby died, some good parallels to work with there I think.
Regards Al.
I went back to him and explained that police were sure that Amber-Lee did not drown in the lake.
I asked him to reconsider speaking to me.
I told him I'd spoken with his son and wanted to get his version of events about that fateful day too. He did not respond.
Until there is concrete evidence police cannot and will not make an arrest in this case.
They still get the occasional lead or tip about Amber-Lee and follow each up as best they can — but to date nothing has given them enough to close in on the person or people responsible for her disappearance.
Walker and Kean both say at least one person out there knows what happened.
It's a hell of a secret to keep for 25 years.
UP NEXT
In the final episode of Chasing Ghosts: It's been 25 years since Amber-Lee went missing. What would it mean for her family to finally bring her home?