Police noticed the Pennsylvania man who tried to assassinate Republican presidential candidate Donald Trump more than an hour before the July 13 shooting and took a photo to share with other law enforcement officers, an FBI official has said.
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"The shooter was identified by law enforcement as a suspicious person," Kevin Rojek, the special agent in charge of the FBI's Pittsburgh field office, told reporters at a briefing on the agency's investigation into the assassination attempt.
He said a local officer took a photo of gunman Thomas Crooks and sent it to other law enforcement officials at the scene of Trump's Pennsylvania rally that day. Some 30 minutes later, Rojek said, SWAT team operators saw Crooks using a rangefinder and browsing news sites.
Crooks was seen carrying a backpack around 5.56pm local time, less than 20 minutes before the shooting took place, and at 6.08pm he was caught on a police dashboard camera walking on the roof from where he ultimately fired the shots, Rojek said.
Although the FBI is not the agency responsible for investigating any lapses in Trump's security, FBI personnel are putting together a timeline of events, he said.
FBI officials said they had yet to identify a motive for Crooks, the 20-year-old gunman, who was shot dead by a Secret Service agent after opening fire.
But they said he had conducted online searches on prior mass shooting events, on improvised explosive devices and on the attempted assassination of the Slovakian prime minister in May.
Trump, who has been highly critical of the FBI, has agreed to sit for a standard victim's interview, which "will be consistent with any victim interview we do," Rojek said.
"We want to get his perspective."
Rojek confirmed Trump was struck by a bullet, whether "whole or fragmented into smaller pieces."
FBI officials have described Crooks as a loner who had no close friends or acquaintances, with his social circle limited primarily to immediate family members.
Using encrypted applications, he made 25 firearm-related purchases and six chemical precursors used to make explosive devices, FBI officials told reporters.
His longtime interest in science and doing science experiments did not rouse any suspicion by his parents, whom the FBI said have been cooperative with their investigation.
Australian Associated Press
