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The Eva Disch Case |
| In October 1904 a dirty handkerchief containing bits of coal, snuff, and grains of the mineral hornblend was found at the murder scene of a seamstress named, Eva Disch. A suspect was found who used snuff, and worked part-time at both a coal burning gas works and a quarry that had an abundance of the mineral hornblend in the rock that it produced. The suspect also had two layers of dirt in his pant cuffs. The lower layer matched the soil at the crime scene and the upper layer, characterized by a particular type of mica particle, matched the soil found on the path to the victim's home. When confronted with the evidence the suspect confessed. (Murray and Tedrow, 1991, p. 4) |