What we know, minute by minute, about how the Uvalde shooting and police response unfolded

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Details of how a gunman was able to enter Robb Elementary School in Uvalde and kill 19 students and two teachers over the course of an hour have come out in parcels since the shooting.

Gov. Greg Abbott and Texas Department of Public Safety officials have walked back some of their initial statements about the shooting and the authorities’ response after contradictory information came to light.

Details of how long it took for officers to confront the shooter — about 1 hour and 15 minutes — have also sparked widespread outage and criticism. In July, an investigation into the shooting by a Texas House committee determined the law enforcement response was plagued by "systemic failures and egregious poor decision making."

Here is a timeline of the events according to the most recent information available.

The following timeline and images contain disturbing material. The timeline does not include any images of the shooter or gunshot victims. The faces of students and teachers have been blurred out.

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