Adm. Mike Mullen presents Spc. David R. Reid III with the Purple Heart. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, U.S. Navy, presents U.S. Army Spc. David R. Reid III with the Purple Heart during a visit to Brooke Army Medical Center in San Antonio, Texas, on Sept. 30, 2010. Reid, a Ranger assigned to the 75th Ranger Regiment, sustained his injuries on Sept. 20 when he stepped on a pressure plate improvised explosive device during combat operations in Afghanistan. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 417903-J-XUB00-423.jpg Photo Gallery