Polk County Sheriff Grady Judd said a deputy was shot and killed early Tuesday morning while serving a felony search warrant. The Polk County Sheriff's Office (PCSO) said that Sergeant Michael Brooks and Deputies Johnny Holsonback III, Adam Pennell and Blane Lane arrived at a trailer on Foxtown South in Polk City around 3 a.m. to serve Cheryl Lynn Williams, 46, a warrant. Williams had an outstanding felony warrant for failure to appear on a possession of methamphetamine charge.