Alma Contreras, 41, of Albuquerque was found dead on the night of July 14, 2016. Authorities say her death was caused by gun violence and involved her boyfriend, who was identified as the suspect in her murder.

The suspect, a 44-year-old man, was arrested after an hour-long standoff when he barricaded himself inside an Albuquerque apartment and refused to leave. A SWAT team took him into custody; Capt. Justin Dunlap said the man was charged with murder and tampering with evidence. Specific details about the circumstances of Contreras’s death were not extensively disclosed at the time.

Anyone who knew Alma, her movements in mid-July 2016, or who has information about the events leading to her death is asked to come forward.