GOLDIATH is the online name of the mentioned businessman which has been robbed. He has a famous name and his real name was probably spotted by some well-organized criminal group. They can even be his close friends to whom he discovered his crypto wealth. All is relative right now and the police of the UK can only give positive interviews about their closing to the criminal hideout ( actually they will never catch the thief).
This is actually not the first physical robbery that includes the cryptocurrencies. Goverment gives us the information over the media that they can not suppress and hide. By my opinion there had already been many physical robberies of the cryptocurrencies in the criminal circles that cannot be revealed to the public (reveal can only lead to the prolongation of the investigation that the authorities are conduting). We are all victims of the false media publishment that the government uses for the manipulation.
Wasn't the whole silk road being taken down a pretty famous "robbery" of cryptocurrency? The government seized all of the operator's bitcoin.
I guess this could be one of the dangers of bitcoin. There are a lot of self-made millionares, people that have made a lot of money off of the coin. If criminals get the right information about these people, it's likely that the investors won't have much protection. It's not like they're stars that have bodyguards and whatnot. All it takes is a criminal, a gun, the investor, and his private key. After that, the rest is history.