Lexington police are investigating after an apparent murder-suicide Friday night at a Lexington home left two people dead and a teenager injured.

Police were called to a home on Whispering Hills Drive, near Camelot Drive, around 7:30 p.m.

Fayette County Coroner Gary Ginn says investigators found 32-year-old Tiffany Duiguid dead inside the home, and 44-year-old Keith Plaster dead on the back porch of the home. Police say a third person, a 13-year-old boy, was injured in the shooting.

Police say they think the two adults were having an argument when Plaster shot Duiguid. When the 13-year-old went upstairs to see what was going on, the man shot him, but the boy was able to run to a nearby home for help. Police say he was taken to the hospital with non-life threatening injuries.

Police say they think Keith Plaster shot himself.