An opportunity to target a gunman who ended up killing 21 people at a Texas school was reportedly passed up by police concerned at children in the line of fire.
A person who was trying to enter an Alabama primary school where a summer program was being held has been shot dead by a police officer, authorities say.
The United States should make it easier to confine "deranged" people and eliminate gun-free school zones after a gunman killed 19 children and two teachers this week at a Texas school, former president Donald Trump says.
Americans have been urged to stand up to the gun lobby, as a visibly shaken Joe Biden addressed the nation after a gunman killed 21 at a Texas primary school.
A mass shooting at a primary school in the US state of Texas has left at least 18 children and three adults dead, with the teenage suspect also losing his life.
