KILLEEN, Texas — Downtown Killeen is celebrating local veterans with its Hometown Heroes banner program, a tribute that displays the names and photos of service members along city streets. This year, 60 banners honor veterans like Calvin Coler, a retired Army Command Sergeant Major whose service spanned more than 30 years. Coler, a New Orleans native now living in Killeen, said he was surprised to see his banner. “I was shocked,” he said.