It was quite sad when the robbery occurred on the Indonesian island of Bali, and I, as an Indonesian citizen, also strongly condemned this incident.
The robbery may have been premeditated because the robbers knew the Russian had a lot of bitcoins. $284,000 is not a small amount and the bitcoin holder was too careless to publish that he owns a lot of bitcoins. moreover, he left his seed phrase on the smartphone. If you really want to go on vacation, you should be prepared with fiat money and you don't need to carry spare seed phrases to other places, especially places that are quite prone to robbery.
this can be an important lesson that quite a lot of bitcoin ownership will endanger the owner when people already know and will become the target of crime to seize these bitcoin assets.
He may have something to his blog articles about his bitcoin involvement as he is a blogger.
I am sure, these perpetrators have read his blog, the reason why they have idea about his bitcoin holdings.
If you don't want to be a target of any fraudster, better keep your crypto involvement within yourself.
There's no need for everyone to know that you are in this market. It is easier to safeguard your privacy if no one knows you are in this market.
Remember, anywhere you go, even if it is the safest place in the world, there will always be scammers or persons with evil minds.