The gloves and cloth that were washed down the toilet... um, the gloves were oil-stained, and large enough for a man to wear comfortably, so... that... doesn't help us narrow things down m-much. The cloth seemed like it was, um, a leftover scrap from Sho's... art piece... but, there, there didn't seem to be anything on it, even though the culprit went to lengths to dispose of it. Aside from some rust stains, it was still white.
Glove and Cloth Evidence