There’s a museum of the incident with a reconstruction of the plane crash in Italy. Absolutely worth a visit. https://www.inbologna.it/the-museum-for-memory-of-ustica-in-bologna.html
It was known for a long time that the plane was downed by a missile, with the French being suspects.
I left NZ a few years ago and one of my main reasons were the lower incomes and high cost of housing. It all came down to the fact that I couldn’t even afford to rent a flat by my self, whereas right across the Tasman I could earn twice the salary and have a comparable if not lower cost of living.
Eventually I’ve ended up in Europe and I’m earning almost 4 times of what I was earning back home. I’ve considered coming back, bit the prospect of maybe never being able to own a home keeps me away.