Joe Lupo was the Senior Aidman for Alpha Co., 2/2nd. He was killed in action on 26 Aug. '67 when the Alpha Co. medic track (20 track) hit a booby-trapped or dud artillery shell inside our perimeter as it approached the battalion aid station. His best friend and right-hand man, Bob Fazio, was wounded in the blast. Joe was decorated for valor when the 2/2nd Inf. perimeter came under heavy attack in the Battle of Prek Lok II in March '67. Joe's loss was felt deeply by all of us medics. He was one of most highly respected medics in the battalion.
In this photo, which was taken before Joe became Senior Aidman, Joe is standing on the ramp of the 20 track and SP5 Casioca (I'm not sure about the spelling), the Senior Aidman at that time, is taking care of one of the Alpha Co. soldiers.
Photo courtesy of Tom Copeland, 2/2nd Infantry. Thank you to Don Scott for adding information.