On the night of February 7, 2015, 23-year-old Patrick Michael Eberhardt was shot and killed while riding his motorcycle near 15th Street and Bell Road in North Phoenix. Officers found him with two gunshot wounds to his left side; he was pronounced dead at the scene. Another man who was with Eberhardt was injured in the same incident.

Eberhardt was a second-generation Hells Angels member; his father led the Cave Creek chapter. Investigators described the shooting as a targeted attack and said it may have been linked to rivalry with another motorcycle club. A police report named one of two unnamed suspects as a member of the Mongols and referenced an earlier shooting that same day involving unidentified bikers and Mongols.

Witness cooperation was minimal, with other bikers at the scene claiming no knowledge of what happened, which hampered the inquiry. No arrests had been announced as of March 2022. If anyone knew Patrick, was present that night, or has information about the rival-group incidents, please come forward.