That is very curious. There's a lot more to this story than meets the news cycle, I suspect. Hopefully we'll find out shortly.
I'd been curious about what this guy did for a living as nothing had been said. Then reports mentioned "a farm owned by" the shooter. Later I'd heard on Sky News that he is from a prominent family and "very wealthy".
Once someone is identified, we usually hear their occupation. The info might change, but it sounds like at this point that this guy had money and property and no full time occupation.