Gunman at large after ambushing, killing deputy following assault on pizza worker over wrong order: Officials ABC NewsHarris County Deputy Fernando Esqueda shot, killed in apparent ambush; manhunt for suspect FOX 26 HoustonDeputy killed in ambush attack in northeast Harris Co., search underway for shooter KTRK-TVManhunt underway after sheriff’s deputy killed in ambush, sheriff says KHOU.comUndercover Harris County deputy killed in ambush while searching for man who pistol-whipped Little Caesars employee KPRC Click2Houston