AURORA, Ill. (CBS) — Five people who were killed in an Aurora mass shooting will be remembered Saturday one year after the attack.

Flags will be flown at half-staff in the west suburb in memory of Russel Beyer, Vincente Juarez, Clayton Parks, Josh Pinkard and Trevor Wehner, who all died in the shooting at the Henry Pratt Company.

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The shooter was their coworker who had lost his job.

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Five Aurora police officers were also hurt.

“Over this last year we have managed to almost heal from the physical wounds our officers incurred, but there are a lot of emotional wounds and burdens our first responders carry with them,” said Aurora Chief of Police Kristen Ziman.

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Police on the scene engaged in a shootout with the gunman. He was then shot and killed.