Rockville Man Charged with Murdering His Restaurant Coworker

Woman’s body found four days after she was reported missing


Elmer Marilan Campos-Martinez


This story was updated at 10:30 a.m. Nov. 13

A Rockville man has been charged with murder in the death of a woman who worked with him at a Wheaton fast-food restaurant, police said.

Elmer Marilan Campos-Martinez, 47, of Cove Lane, was charged Saturday with second-degree murder.

Montgomery County police said in a press release that the body of Dania Mendez de Guerra, 21, of Wheaton, was found Friday in the rear of a shopping center on University Boulevard West, at Elkin Street.

The press release said de Guerra’s husband reported her missing on the morning of Nov. 6 after she did not return home from working at the KFC restaurant on University Boulevard West.

Police said that while investigating de Guerra’s disappearance, they learned that she and Campos-Martinez were in a relationship.

Campos-Martinez and de Guerra worked at the restaurant on the evening of Nov. 5. After they finished their shifts, they had an argument, the press release said.

Police said Campos-Martinez told them de Guerra was upset and wanted to end the relationship. Campos-Martinez reported that he punched de Guerra three times and pushed her to the ground, where she hit her head and was unresponsive, the press release said.

He took her purse and cellphone and left in a taxi, the press release said. He later threw her property in a trash container.

Police said there appeared to be trauma on de Guerra’s body when it was found Friday.

The state medical examiner’s office ruled that the cause of death was homicide by multiple blunt force trauma and asphyxia.

Campos-Martinez was taken to jail without bail. A preliminary hearing is scheduled for Dec. 1.

Dania Mendez de Guerra. Credit: Montgomery County police


In a Nov. 7 press release asking for help in finding de Guerra, Montgomery County police said she left KFC at 2119 University Blvd. West shortly after midnight on Nov. 6. She was last seen wearing a KFC uniform of black pants, a red polo shirt and black hat with a KFC insignia and black shoes.

The press release said de Guerra, of Amherst Avenue, normally walked to and from work, did not have access to a vehicle and was not familiar with public transportation.

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