A Brutal Serial Killer Was Stalking Omaha. But Who Could Kill With Such Precision? Detective Derek Mois wasn't sure what he was dealing with when in March 2008 he walked into a home in an affluent Omaha neighborhood and was confronted with the bodies of an 11-year-old boy and the housekeeper. Both had been murdered with kitchen knives plunged into their throats. Who would do something so vile, and why? Lacking answers, Mois and other detectives...