That's going by your definition of the free market, where assassinations "don't belong." They do if there's any demand and any supply.
No, they don't. It's only a free market if property rights are respected. Assassination - and governments - by definition does not respect them, so it's an antithesis to free markets. Regardless of supply and demand. Do no confuse "free markets" with just "markets" or even "economic laws" (like the fact that supply and demand determine prices). Economic laws are inexorable and thus, of course, apply to all sort human actions, including those which do not respect property rights, like assassination, slavery. theft and everything else government/mafias do.
But that's another topic 
Finally, it's a bit odd that everyone is so eager to change topics away from fractional reserve banking -- the subject of both the post you are replying to & the title of this thread.
Finally, it's a bit odd that everyone is so eager to change topics away from fractional reserve banking -- the subject of both the post you are replying to & the title of this thread.
It's just that....
Sorry for the off-topic.