We can't say this enough. the constant need to let people know you hold a huge amount of Bitcoin is unnecessary. Public figures that the whole world knows have large amounts of Bitcoin and can afford top security, they are mostly in the most secure places compared to common people. There is a slimmer chance of those kinds of people getting mugged on the street or in a bar or restaurant.
People who are not that privileged, but privileged enough to have a reasonable amount of bitcoin should not advertise it, be it on social media or offline. It's okay for people to know you're into Bitcoin, but they shouldn't know that you have a reasonable amount of it.
It's so sad they had to kill him. They could have just taken his Bitcoin and left him alone to go his own way. It's a crazy world out there and we have to protect ourselves with what we have any way we can both offline and online.