T-Trap;Suspicion?

Ok so this is what happened. Bmill was up top on Mc_valley I was on my way going up when he was comeing down. the whole reason I was going up was because I saw him up there and wanted to go see what sneaky things he was up to. well when I first saw him he had a sniper out. which is usually what people have on valley because its more of a sniping map. when I saw him coming down he had out a different gun it was like an m16 or something. this was my first suspicion. His response was that he found a new gun up there and traded them out. however I couldn't confirm this so I kept the sus on him (After the round was over he told me he did trade them out, it wasn't a silent scout)I then followed him down to the tester where someone was standing on top of the traitor trap waiting to be tested. Bmill then looked in the general direction of the traitor trap and it was set off. killing the man standing on top and adding suspicion to him. with the last 10-20 seconds till overtime left I followed bmill in hopes of killing him in overtime. The seconds went by a shot him he shot someone else and that person killed him. it was not me who killed him but he was killed. later he reported me for false sus.