The U.S. Army is awarding its Medal of Heroism to three Junior Reserve Officers' Training Corps (JROTC) cadets killed in last week's school shooting in Parkland, Florida, an Army spokesperson confirmed Tuesday. Alaina Petty, Peter Wang and Martin Duque were all students at Marjory Stoneman Douglas High School where the deadly attack unfolded. The Army awards the Medal of Heroism to JROTC cadets who perform "acts of heroism." "The achievement must be an accomplishment so exceptional and outstanding that it clearly sets the individual apart from fellow students or from other persons in similar circumstances," the Army said in a...