WORCESTER, Mass.AP —

A woman who started a group that advocates for the mental health of police officers was being sought by authorities Wednesday after a Massachusetts cop was found dead at the home they owned together.

Police began searching for Karen Solomon, who also wrote two books about the physical and psychological experiences of first responders, after Worcester police officer Kurt Solomon was found dead Tuesday. The two shared a home and had been married, court records indicated, but authorities declined to discuss their current relationship, citing domestic violence privacy rules.

The Worcester Police Department said Wednesday that Karen Solomon, 58, was believed to be armed. They released doorbell camera footage of her walking down a street in a T-shirt, shorts and flip-flops early Tuesday morning, just minutes after officers responded to a call from the home.

Police declined to identify the dead officer, but the local police union president, Thomas Duffy, said it was Kurt Solomon, a 31-year veteran of the department.