Cleveland County (Ok.) Sheriff Joe Lester hands Nick Chafey a plaque in honor of his mother, Rona, who was killed in the 1995 Alfred P. Murrah Federal Building bombing in Oklahoma City, at the Cleveland County Sheriff’s Office during a dedication ceremony Thursday, Apr. 2, 2015. The wall is dedicated to officers whom have fallen in the line of duty. “This wall is a tribute to those who paid the ultimate sacrifice for this department,” Cleveland County Sheriff Joe Lester said. “I can’t think of a better way to recognize our fallen heroes.”