Casey Sheridan has announced his resignation as Kiowa County sheriff a year after two of his officers gunned down an unarmed handyman during a routine traffic stop.  The second-term law enforcement chief in the far Eastern Plains county posted on his department’s Facebook page late Tuesday that he has "chosen to put my family and my health first as I step away from my law enforcement career." His last day is June 4. “This was an exceedingly difficult decision as I loved and enjoyed being the Sheriff of our county,” he wrote. Sheridan swore into office in 2014 when his predecessor retired in the middle of his term. He was...