Christopher Robinson, 37, of Abington, Md., who was a police officer assigned to the Baltimore Police Department's Eastern District, had broken up with Marie Hartman, 27, in August, his family said, and had struggled with moving past the relationship. In September, Hartman had begun dating Andrew Hoffman, 26, though Robinson continued to pursue Hartman, sending her text messages and flowers in an attempt to woo her back, The Baltimore Sun reported.
Police said Robinson followed the couple home from a Halloween party early Sunday and confronted them inside Hoffman's Anne Arundel County home where the two along with Hartman's 18-year-old sister were planning a bonfire.
Officers said Hoffman confronted Robinson and the police officer opened fire, killing Hoffman and Hartman. Hoffman's sister hid in a closet and later fled out a window after Robinson killed himself.
Robinson's family said they were aware he was having a hard time with the breakup but expressed shock that it ended with such violent tragedy. Robinson's brother, Wayne, is also a city firefighter and was friends with Hoffman.
"I don't know what happened last night, but the person that pulled that trigger wasn't the Chris that I know," Wayne Robinson said. "They told me this morning and I didn't believe it. I just couldn't wrap my head around the fact that it happened. I lost a brother and I lost a friend. It's just crazy."
When last he'd spoken to his brother, Wayne Robinson said Chris has asked his advice on the situation and Wayne suggested Chris leave the new couple alone and move on.
"He was having problems with this girl," Wayne Robinson said. "He asked me two weeks ago for advice. I told him to leave her be, because she didn't want anything to do with him anymore."
Anne Arundel police spokesman Lt. T.J. Smith said investigators were "able to quickly determine this was a domestic-related murder-suicide."
"This is an absolute tragedy," he said.