On this day: July 18

1. 1901
   Victim Willie Nickell · Tom Horn

   The son of Laramie County sheep rancher Kels Nickell.

2. 2018
   Victim Mollie Cecilia Tibbetts · Cristhian Bahena Rivera

   A University of Iowa psychology student from Brooklyn; friends started "The Mollie Movement" in her honor to encourage kindness.