3 months ago, one of the biggest Turkish exchange owner had kidnapped and forced to give private key of the cold wallet. Kidnappers stole 150 BTC. So this news is not the first physically stolen Bitcoins via force. I am sure there were some other robberies too.
Yep, kidnapping in order to knock out private keys is a very common practice nowadays. It has happened before, it'll happen again.
This is alarming among crypto supporters as most early adopter of thos blockchain technolohy creates more millionaires.As an addotional advise it is not good to display your gain on trades on your social media accounts so that it will not attract others to harm you.