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Monday, February 20, 2023

The Dr. Thomas Dixon Love Triangle Murder-for-Hire Case

     The cast in a murder-for-hire plot features three principal characters: the instigator/mastermind who solicits/contracts the homicide; the hit man (or undercover agent playing the triggerman role); and the victim, the person targeted for death. While these cases, in terms of the principal actors, have a somewhat common anatomy, they differ widely according to the socio-economic status of the participants, the nature of their relationships to each other and the specific motive behind the murder plots.

     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. He had also been stabbed. 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?

     Less than a week after the murder detectives caught a break. A longtime friend and former business associate of Dr. Dixon's told investigators that David Neil Shepard had killed Dr. Sonnier. According to the informant, Shepard, who had attempted suicide two days after Dr. Sonnier's murder, told him Dr. Dixon had given him three bars of silver worth $9,000 as an advance on the hit. (On June 15, 2012, Shepard sold one of the bars for $2,750.) Shepard told the informant he entered Dr. Sonnier's house through a window and murdered him.

     Because the suspected hit man revealed to the snitch information only known to crime scene investigators, the tipster's story rang true. (Shepard had described, for example, how he had muffled the sound of his gun, and  how many times he fired the weapon.)

     The 51-year-old accused hit man had a crime history of two convictions for theft and burglary. Detectives believed David Shepard and the plastic surgeon had met on the day before Dr. Sonnier's murder. The fact Shepard had sold the bar of silver at an Amarillo pawn shop tended to support a piece of the informant's story.

     On July 16, 2012, police in Amarillo arrested Dr. Thomas Dixon and David Shepard on charges of capital murder. The suspects were booked into the Lubbock County Criminal Detention Center under $10 million bond each.

     This murder-for-hire case was especially newsworthy because the accused mastermind and his victim were physicians. The case was also unusual because David Shepard was much older than the typical hit man. But the love triangle motive was fairly common.

     In April 2013, the mother and sons of Dr. Sonnier filed a wrongful death suit against Dr. Dixon. However, before the civil action could proceed, the murder case had to be resolved within the criminal justice system.

     The suspected hit man, David Neal Shepard, in September 2013, pleaded guilty to breaking into Dr. Sonnier's home and stabbing and shooting him to death. The judge sentenced him to life.

     Lubbock County prosecutor Matt Powell announced in November 2013 that the state would seek the death penalty against Dr. Dixon, the accused mastermind behind Dr. Sonnier's murder.

     In November 2014, at the conclusion of Dr. Dixon's three-week capital murder trial, the jury of six men and six women, after eight hours of deliberation, were unable to reach an unanimous verdict. Judge Jim Bob Darnell declared a mistrial.

     Doug Moore, the jury foreman, in speaking to the media following the mistrial, said that although the case against Dr. Dixon was strong, two jurors refused to find him guilty. The foreman described these jurors as being not very bright. "For me the evidence of guilt seemed very clear," he said.

     Shortly after the mistrial the judge denied the defendant's request for a reduction of his $10 million bond. However, in September 2015, the judge reduced Dixon's bail to $2 million. A few days later the accused murder-for-hire mastermind paid $200,000 and was released from jail pending the disposition of his second trial.

      On November 19, 2015, the jury in Dr. Dixon's second trial found him guilty of capital murder. The judge sentenced him to life in prison without the chance of parole.

5 comments:

  1. My husbands cousin is engaged to Richelle now..

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  2. Dr. Dixon had a wife, three children and a good job. Of course that does not mean his life was perfect. After attaining the status of a medical doctor, isn't it shocking to think that he could not see any other way to solve his problems than by murder!

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  3. No matter how educated how wealthy what social status someone comes from, does not guarantee common sense with relationships. Gold digging women seek out the best personality to zero into and use their sex for gain. It's the oldest story in the book. Why kill someone? Go find someone better. Of course,her objective is monetary, as much as I do like men, my husband son and father, testosterone has caused more problems in history than anything else.

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    Replies
    1. So then why are you blaming a woman who had nothing to do with it??

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