Dustin Shirk, a 30-year-old U.S. Marine veteran, was found with multiple gunshot wounds in Cielito Park near 35th Avenue and Indian School Road in Phoenix during the pre-dawn hours of a Tuesday in July 2016. He was taken to a hospital where he died. The attack is believed to have occurred during a robbery while he was at the park.

Shirk was the oldest of seven siblings and remembered by family, friends, and co-workers for his kindness and willingness to help others. Investigators questioned more than a dozen people who were in the park, including some who were playing the mobile game Pokemon Go. His family held memorial gatherings at the park on what would have been his 31st birthday, his mother publicly appealed for information, and a reward was offered for tips leading to an arrest.

No arrests have been publicly announced and the person or persons responsible remain unidentified. Anyone who knew Dustin or who has information about what happened that morning is asked to come forward.