He is not giving us much detail but what if this wasnt a hack but instead someone physically broke into his house. He is claiming that they got his Bitcoin on cold storage, how else can that be stolen?
he said his server was hacked. thus he had a hot wallet and pgp key store on his server that was hacked
Yes this seems like the most possible explaination but he is saying the server didnt store any bitcoins or have access to those bitcoins.
Reading his posts he claims that he has bars on his office windows, and has a large heavy door that he locks with the key. And he also keeps everything separate on his activity between different computers.
And reading more into this, it seems it might actually be real and freaking out how this can happen to someone with security so tight and somehow got his bitcoins stolen.