University of Arizona graduate Christiana Duarte who was reported missing in the aftermath of the deadliest mass shooting in modern U.S. history in Las Vegas is dead, NBC Los Angeles reports.

According to NBCLA's Jonathan Gonzalez, her family confirmed the died in the attack.

Gonzalez said the 21-year-old had just recently graduated and was working for the Los Angeles Kings.

Friends and family said she was part of the 22,000 people at the Route 91 Harvest Festival in Las Vegas, where a gunman killed over 50 people and injured over 500 more, Las Vegas officials said Monday.

U of A President Robert C. Robbins issued the following statement after news broke of Duarte's death:

"All of us in the University of Arizona community are saddened that Christiana Duarte, one of our graduates from this past May, is among the victims from Las Vegas on Sunday night.

"Staff in our Dean of Students office and Life & Work Connections are reaching out to those who knew her, including her sorority sisters in Sigma Kappa.

"This attack is a terrible tragedy for hundreds of families, and it is a shocking and horrific event for all of us. I know I speak for the UA community in expressing our deepest condolences to Christiana's family and in asking for their privacy to be respected."

Police said 64-year-old Stephen Paddock shot from the 32nd floor of a casino, killing 58 people and injuring more than 500.

The City of Las Vegas has issued a hotline, helping people who are looking for their loved ones. You can call them at 1-800-536-9488.

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