Article Photos: 3 killings in 2012 remain unsolved 5/7

"FIRST PERSON: STORIES OF HOPE" SERIES: Oklahoma City Police Chief Bill Citty speaks about his experiences during the Oklahoma City bombing during the OKC National Memorial series, Stories of Hope, Friday, Aug. 6, 2010. Photo by Doug Hoke, The Oklahoman ORG XMIT: KOD