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BOULDER, Colo. (KDVR) — Neven Stanisic is being remembered as a nice guy who loved his family.

The 23-year-old was one of 10 people shot and killed Monday afternoon at a Boulder supermarket.

Rev. Radovan Petrovic with St. John the Baptist Serbian Orthodox Church in Lakewood said Stanisic was working inside the King Soopers for a supply company and had completed his task. He had walked outside when he was shot.

“I was thinking, he missed a few seconds to leave earlier and he’d probably be alive,” said Petrovic.

Petrovic said the young man was a graduate of Alameda High School in Lakewood.

“He was a quiet boy,” said Petrovic. “Very well-mannered. Loved his family very much.”

Stanisic leaves behind his parents and a younger sister. Funeral services are pending.