Editor’s Note: This story was originally published on July 14. It was updated on July 26 with additional forensic analysis.

CNN  — 

Former President Donald Trump was injured in a shooting during his rally in Butler, Pennsylvania, Saturday evening, in what the FBI says was an assassination attempt. One rally attendee was killed and two others were seriously injured.

The rally marked Trump’s last public appearance before the scheduled start of the Republican National Convention in Milwaukee, where the Republican Party is set to formally select him as its presidential nominee.

Through videos, maps and photos, CNN pieced together what occurred from the start of the rally to the chaotic moments when gunshots erupted to, ultimately, when Trump landed in Newark, New Jersey, early Sunday morning.

View this interactive content on CNN.com

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