Police say the 35-year-old man was taken into custody Tuesday and is expected in court Thursday for a bail hearing.
Fifty-one-year-old Richard Miller and his 19-year-old daughter, Jocelyn Miller, were found fatally shot in their home last September. Police say the suspect was acquainted with the two and had worked for the father in the past.
Authorities recently released some surveillance video of a person and a vehicle in the area on the night of the homicides. Officials say that generated some leads that led to an arrest.