As Spankeem said, that is not enough to go on.
This player has only 6 connections but has 5 different names he's played under so watching for him in game may not really be helpful. I'll put a notice on him for admin to watch.
His k/d ratio isn't that great 1.67. He is from Italy and has a clean GUID, fwiw.
And.... even if I want to believe you (which I do) we can only go by what is seen by admin (live or on demo) and that is a rule that I would think you would agree with.