Authorities want to know how a shooter was able to get on top of a roof so close to where former President Donald Trump was speaking and open fire.
That is one of the focuses of the investigation into Saturday’s assassination attempt on Trump as Republicans gather in Milwaukee for their national convention and President Joe Biden implored Americans to reject political violence.
Here’s a look at what we know so far:
How did a gunman get so close to Trump?
The U.S. Secret Service is investigating how the gunman armed with an AR-style rifle was able to get on a nearby roof and shoot and injure the former president at a rally Saturday in Pennsylvania.
The gunman, who officials said was killed by Secret Service personnel, fired multiple shots at the stage from an “elevated position outside of the rally venue,” the agency said. Trump was bloodied and says he was “shot with a bullet that pierced the upper part of my right ear.” A spectator was killed.
An Associated Press analysis of more than a dozen videos and photos taken at the Trump rally, as well as satellite imagery of the site, shows the shooter was able to get astonishingly close to the stage where the former president was speaking.
The roof was fewer than 150 meters (164 yards) from where Trump was speaking. Biden has directed an independent review of the security at the rally.
What is known about the Trump rally shooter?
Thomas Matthew Crooks, the 20-year-old nursing-home employee from suburban Pittsburgh who tried to shoot Trump was, a registered Republican who packed explosives in the vehicle he drove to the campaign rally an hour from his home.
Authorities said it was attempted assassination but haven’t determined what motivated Crooks to try to kill Trump.
Law enforcement officials were working Sunday to learn more about the young man from Bethel Park, Pennsylvania, to determine what motivated him.
The FBI has not yet identified any underlying ideology or threatening writing or social media posts from Crooks, who had no past criminal cases against him, according to public court records. The FBI believes Crooks acted alone and the shooting was being investigated as a potential act of domestic terrorism.