Col. Buck Elton, 27th Special Operations Wing commander, presents Susan Zerbe, mother of Tech. Sgt. Daniel L. Zerbe, with a memorization plaque for her son at the base pool at Cannon Air Force Base, N.M., May 27, 2013. The DZ Pool was named in remembrance of Zerbe, a pararescueman who formally served under Air Force Special Operations Command and perished in the line of duty. (U.S. Air Force photo/Senior Airman Alexxis Pons Abascal)