Army awards medals to 3 students killed in Florida shooting

PARKLAND, Fla. (CNN) -The army is awarding medals for heroism to three students killed in last week's Florida school shooting.JROTC cadets Alaina Petty, Peter Wang and Martin Duque were among the 17 people killed at Marjory Stoneman Douglas High School.An Army spokesman says they are receiving heroism medals because of their brave actions during the attack.Wang was shot while holding a door open so others could escape. He was buried Tuesday wearing his medal pinned to his JROTC uniform.Petty&rsq