An armed local resident intervened and killed the 16-year-old attacker inside Silver Rail Elementary School after he shot through locked doors.
A 15-year-old boy died after being shot in the stomach outside the Martin Luther King Jr. Towers.
Police link gunfire outside Aerie Stadium to Somali gang disputes as local leaders urge practical solutions over political rhetoric.
Two gunmen opened fire on each other near a youth football homecoming event, leaving a child dead and four adults injured.
Police were already monitoring a crowd of more than 1,000 people in Vienna when gunfire broke out across two locations.
A wave of attacks by heavily armed groups has exposed the deadly reality of illegal firearms, even as national murder rates fall.
The FBI has joined local police to search for suspects after gunfire erupted less than an hour after a permitted community event ended.
