So I was playing as a Sniper on a server and I killed Pybro a few times, he raged and was toxic but I don't have screenshots of that. He headshotted me while I was invisible as a spy and then turned around in 1 frame and one time when I uncloaked a bit behind him he turned around and headshotted me. In the chat you can see that he says that he has an aimbot.