A dispute over a septic tank in rural Calhan turned fatal on September 15, 2014. Michael Mackey, 30, was shot and killed on a property in the 9800 block of Calhan Highway. The El Paso County Coroner’s Office determined he died of multiple gunshot wounds and ruled the death a homicide.

The investigation led to the arrest of 59-year-old Heather Neville. Neighbors said Neville rented on the property and had been in a disagreement with her landlord, who was reportedly denying her access to the septic tank; that conflict is believed to have sparked the shooting. Neville was charged with first-degree murder and made an initial court appearance. Her children were placed with relatives after her arrest.

Does anyone have information about the events on the property that afternoon or knew Michael or the family involved?