Seattle police say a man who robbed a man outside a Capitol Hill gas station helped police find the missing cash – which turned out to be stashed between his buttocks. Police said they were called to a gas station at Broadway and East Pike Street for a robbery around 2:30 a.m. Tuesday after the 42-year-old man pulled a knife on a man outside the business. Officers arrived, found the robber, took him into custody and found his knife behind the gate of a closed business –