"How I waited for you! How I longed for you! he stammered. "I thought of you all the time. I saw you all the time. Your smile was everywhere." He lowered his voice and added, "Sometimes when people were talking commonplaces and your name happened to be mentioned, It would go through my heart like an electric current."

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It is a mistake to confound strangeness with mystery. The most commonplace crime is often the most mysterious because it presents no new or special features from which deductions may be drawn. This murder would have been infinitely more difficult to unravel had the body of the victim been simply found lying in the roadway without any of those outré and sensational accompaniments which have rendered it remarkable. These strange details, far from making the case more difficult, have really had the effect of making it less so.

— Arthur Conan Doyle