OSBI agents went to gun dealers and pawnshops to create a list of .40-caliber Glock owners. WELEETKA (OK) — Authorities working to narrow their leads in the June 8 shooting deaths of two girls used old-fashioned legwork to come up with a list of area gun owners with .40-caliber pistols, one of two weapons used in the slayings.Oklahoma State Bureau of Investigation agents knew the caliber of the guns used in the killings, so they merely checked with area gun dealers and pawnshops to determine who had bought or recently pawned .40-caliber Glocks. "It's a typical procedure of any investigation"...