A teacher who was present during the mass shooting at a Texas school closed the door that the shooter later used to gain access to the building, her lawyer has said.
A senior police official had previously said that the gunman, Salvador Ramos, entered Robb Elementary School through an open door before shooting dead 19 children and two teachers.
However, the teacher's lawyer, Don Flanary, said his client closed the door after realising that a gunman was on the loose. He said the teacher - who has not been named due to safety concerns - called 911 to report an accident near the school involving a black truck, which turned out to be driven by Ramos.
