Monserrat Calixto was 25 when she was killed on September 24, 2013, in Houston. She was one of multiple victims in an apartment shooting in northwest Harris County that authorities later described as a triple homicide. The shooting occurred at a motel at 12929 Northwest Freeway, and Monserrat was taken to an emergency care center by several unknown individuals before investigators identified her as a victim.

Law enforcement later identified and charged a suspect, Gabriel Jesus Rangel, also known as Gabriel Calixto, in connection with the shooting. Witnesses told authorities the shooting was accidental, but detectives pursued charges and Rangel was charged with manslaughter after an investigation. The case was one of several high-profile homicides that added to Houston’s rising gun violence in 2013.

If anyone knew Monserrat, saw activity at the motel that night, or has information about the people who brought her to the emergency care center, please come forward with what was observed.