Checked his chat and saw nothing that looked like a freekill order.
 
Checked his chat and saw nothing that looked like a freekill order.

After he said "GO KILL THEY." he started killing prisoners for no reason. Unfortunately, I have no demo or screenshots but I don't know if this helps but if you would check the server's chatlog after he said his order which is at 10:31:05.
If this doesn't help then i'll just provide evidence next time.