Someone market bought XMR worth around 2 million US dollar in just a second.

massive buy to enter the market as quickly as possible on the same day one of the guys running BTC-E who was possibly involved in the hack of Mt Gox gets arrested. Things that make you go hmmmm.
Yeahhhhh ... I'm looking at zCash, zCoin & Dash. Surprised he's not buying them all up if he's in a huge rush.
This could turn into an interesting dynamic. Are the exchanges that receive stolen coins on exit scams or someone running from the law in this situation obligated to turn over their received bitcoin to the law even though someone has withdrawn the exchanged asset? How long does this responsibility follow them?