Just an advice to r4h, please don't use all the admin ESP settings. Best is if you use only the box although in this instance it was plain obvious so you should of turned it of since all CT are on the pallet to be killed really. Teams were not balanced at all.
About the actual cheat. There is only one spot and that was on the left building the CT went upstairs and hid behind the vents, he didn't kill the guy, but he aimed at him there where he hid behind the second vent just as the CT moved there. Also no wonder he was so good, no one could kill him because of his lag. For me laggers like that can be kept away from servers. About the top right building window where the CT was hiding until being last, well you clearly can see that there were couple CT's and since the T were all over the place, where else could of he been? This could be coincidence and therefore I wouldn't class it as obvious wh, yes he did look up, but who wouldn't? As I said if you turned the boxes off, when he zoomed before he got down you could of seen what he can actually see. It is called a fast flick esp.
In overall, quite few might disagree with me, not enough proof to keep him banned, although I don't think laggers like that are fair anyway.