Hacker?
That's john daghita aka "Lick" and " Dean Daghita, president of CMDSS, happens to be John Daghita's father.". That should be clear enough that it was just a son using the private key carelessly stored by his father.
There's a recent thread about it
John Daghita Son to a USA service man Steals $40m from nation's bitcoin, why do I feel like it's getting twisted
The article suggests that the point of failure in this case may have been the family‑run contractor that assisted "the USMS in managing and disposing of seized or forfeited crypto assets". This contractor likely did not maintain adequate security for the relevant private keys and made some lapses which allowed hackers to access the seized assets.
So who was this contractor?