A series of shootings in southern Idaho left four people dead in early July 2025. Authorities found 77-year-old Dennis E Mix, a White/Caucasian man from the Burley‑Heyburn area, dead in a Ford Expedition behind a business in Heyburn; investigators concluded he had been shot. Mix’s body was discovered on July 8, 2025, though it’s believed he may have been killed sometime between July 3 and July 8.

Earlier the same day authorities found 35-year-old Angelica Medina dead in Rupert and later discovered Kelly Jenks, 66, and his wife Donna Jenks, 62, fatally shot in their Burley home. A single suspect was identified and, after a traffic stop late on July 8, police arrested 56-year-old Benjamin Roy Naylor of Burley. Naylor was charged with four counts of first‑degree murder and was taken into custody without incident; he is being held without bond. The motive remains unclear; Naylor’s family has said he had a long history of severe mental illness.

Does anyone have information about Dennis Mix or the other victims that could help clarify what led to this violence?