Arroyo , who was Puerto Rican , was the first American serviceman to be killed in Operation Restore Hope during the Somalian Civil War .
Domingo Arroyo , Jr. , Private First Class , U.S. Marine Corps .
Domingo Arroyo , Jr. , who was Puerto Rican , was the first American Domingo Arroyo , Jr. to be killed in Operation Restore Hope during the Somalian Civil War .
Domingo Arroyo , Jr. , Private First Class , U.S. Marine Corps .