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Dallas officials charge man in 1984 cold case murder, nearly 38 to the day, young woman found dead


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On Friday, the office of Dallas District Attorney (DA) John Creuzot arrested and charged a man in the 1984 murder of 21-year-old Mary Jane Thompson.

Edward Morgan, 60, now faces one count of capital murder in the murder of Thompson after 38 years following an investigation by the district attorney’s office in conjunction with the Dallas Police Department (DPD ) and the FBI.

His arrest came nearly 38 years after the day Thompson’s body was discovered behind a warehouse on February 13, 1984, after a DNA test linked him to the crime.

Edward Morgan. (Dallas County Attorney’s Office)

“This case is another example of the incredible collaborative effort between the Dallas Police Department, the FBI and the District Attorney. [Sexual Assault Kit Initiative] The Cold Case team. Working together, we continue to solve the toughest cold cases Dallas has ever seen,” Dallas County Assistant District Attorney and SAKI Chief Leighton D’Antoni said in a statement Friday.

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He continued: “I look forward to working with all of our local law enforcement agencies to use advances in forensic testing techniques to identify, arrest and prosecute the most dangerous predators lurking among us. We never forget these cases, our victims, and their families.”

Thompson was last seen on Feb. 11, 1984, when she took a bus to Trinity Medical Clinic on then Industrial Boulevard, but it was closed, according to the Dallas Morning News.

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Authorities discovered her body two days later behind a building in the 2300 block of Irving Boulevard in Stemmons Hallway. Investigators determined at the time that Thompson had been sexually assaulted and strangled with her own leggings, the Morning News reported.

Dallas officials charge man in 1984 cold case murder, nearly 38 to the day, young woman found dead

2300 block of Irving Blvd in Dallas. (Google Maps)

DPD reopened the cold case in 2009 and performed DNA testing with swabs from Thompson’s autopsy. Investigators identified an unknown man’s DNA profile that did not match a specific suspect at the time, and the case went cold again until 2018. The FBI’s Dallas Violent Crimes Task Force s is attached to the DPD investigation, according to the prosecutor’s office.

A forensic genetic genealogy (FGG) analysis finally linked Morgan to the murder earlier this week.

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D’Antoni said FBI Dallas and DPD Detective Noe Camacho “spent countless hours over several years working diligently on what, at times, seemed like an impossible case to solve.”

“It’s not every day that we are able to solve a 38-year-old capital murder. It takes a singular dedication and genuine commitment to justice to do so. The people of Dallas are very lucky to have helped them to protect our community,” said D’Antoni.

Morgan is being held on $500,000 bond.

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