I wonder if police will seize bitcoin he stole and arrange auction for it like they used to do in the past...
OK, you could argue that buying something from a darknetmarket is illegal, but I'm sure that there are also people using it for legitimate uses.
Maybe for buying prescription meds that they cannot afford otherwise, I've read some stories about this, not sure if they were true.
Or even medical cannabis for people who really need it, but can't source it through other means.
I personally don't think that someone suffering from Parkinsons should be blamed for trying to buy something to give him relief from all the symptoms, even if it is illegal.