Richard Abeyta, a 28-year-old Hispanic man from Casper, was shot in the head at a gathering in the 400 block of North Washington Street on the night of August 9, 2014. The dispute began after Charlie Mapp returned with more alcohol and Abeyta accused him of making advances toward Abeyta’s girlfriend. Investigators say Mapp retrieved a .38 revolver from his vehicle and shot Abeyta from several feet away. Abeyta was taken to Wyoming Medical Center, placed on life support, and died the next day, August 10, 2014.

Mapp was identified, arrested, and charged with second-degree murder; bond was set at $150,000. A plea deal to voluntary manslaughter that would have capped exposure at eight years was later rejected by the judge, and the case went to trial in September 2015. The defense argued self-defense, citing intoxication and conflicting witness memories; prosecutors emphasized that Mapp had opportunities to leave, armed himself, and had a significant blood alcohol level. On September 17, 2015, a Natrona County jury acquitted Mapp of second-degree murder and manslaughter.