On the evening of December 11, 2021, a gathering at a home on Camino Don Luis in Pecos, New Mexico ended in gun violence that killed 40-year-old Steven Singer of Santa Fe and 48-year-old Eva Aragon. Singer, a barber, had been cutting hair earlier that night for Mark Valencia, also 40. An argument reportedly began when Valencia complained Singer had only cut half his hair.

Singer and Aragon, who were just inside the front door, were struck; the homeowner hid in a bedroom closet and escaped physical injury while Valencia fired at least one round in his direction. Officers arriving after a 9:30 p.m. call found Singer and Aragon deceased and located Valencia seated in a van outside with blood on his hands and body; he was taken into custody at the scene.

Valencia was charged in connection with the shootings.