But what killed the unicorn? By Mark A. Rayner on November 16, 2010 in But is it art?, Parody & Satire I think it was probably Colonel Mustard, in the Study, with a pipe wrench. (Col. Mustard also has an MBA, and probably asked about the ROI in the first place, just so he could launch his murder spree.) Alltop is more of a candelabra man. More excellent social media cartoons at Noise to Signal.