it looks to have stopped at the last address and hasn't moved in a couple of days. It seems fairly inactive. The final transaction appears to be somewhere in China, however im not sure how accurate that is.
Sadly most likely it's behind a proxy so hard to tell who actually did it or where.
I would watch it to see if they ever happen to make a mistake that can identify who it is. Most likely they will sit on the btc not moving it or go through a bitmixer.