Marcus Luttrell (born 1975) is a former Petty Officer First Class(pay grade E6) and United States Navy SEAL. He received the Navy Cross for his actions in 2005 facing Taliban fighters during Operation Red Wing. Born and raised in Huntsville, Texas, Luttrell attended Sam Houston State University. He began training for the SEALs at age 14 with former United States Army Special Forces soldier Billy Shelton, who lived nearby. He trained every day with his twin brother, Morgan, and others who aspired to join the military. Billy Shelton, a former Green Beret, trained them using various weight and endurance exercises.