Karen Solomon, a Massachusetts woman wanted in connection with the death of her police officer husband, was believed to be found dead Monday, the Worcester Police Department said at a news conference, just days after police issued an arrest warrant for her. A gun was found near her.

Police had been searching for Solomon after her husband, Worcester police officer Kurt Solomon, was found dead at the home they owned together on Tuesday. Karen Solomon was the co-founder of a group that advocates for the mental health of officers.

Officials said they believe Karen Solomon killed herself.

There was no history of domestic abuse between the couple, according to Worcester Police Chief Paul Saucier, who called the incident a tragic murder-suicide.

Karen Solomon was wanted for assault and battery with a dangerous weapon with serious bodily injury, Saucier said at a news conference on Friday. She was considered armed and dangerous, the chief said at the time, though Kurt Solomon’s service weapon was not missing from the home.