STORYLINE
On July 11, 2012, someone broke a window and climbed into the Lubbock, Texas home of Dr. Joseph Sonnier III, the 57-year-old chief pathologist of the Covenant Health System in that city. The intruder shot Dr. Sonnier to death. The victim lived alone, and because nothing had been taken from the house, police ruled out robbery as the killer’s motive.
Later on the day of the murder, Lubbock detectives questioned Dr. Sonnier’s girlfriend in an effort to determine who may have had a reason to kill the doctor. When she mentioned she had been having trouble with her former boyfriend who insisted on seeing her even though she was dating Dr. Sonnier, the detectives had a suspect, and a potential motive.
Their person of interest was a 48-year-old prominent plastic surgeon named Dr. Thomas Michael Dixon who practiced in Amarillo, Texas, a panhandle city 120 miles north of Lubbock. Because the homicide detectives didn’t think that Dr. Dixon had climbed into Dr. Sonnier’s house through a window and personally shot him, they considered the possibility of a murder-for-hire conspiracy. But who was the hit man?