Husband kills wife and himself at Jehovah's Witnesses place of worship in Thornton, both former congregants - CBS Colorado (cbsnews.com)
According to the Thornton PD press release, it was at 9 a.m. the police department received a call about a fire at Kingdom Hall (951 Milky Way), but it was then reported a woman was shot and killed by a man at the congregation's place of worship. That man then shot and killed himself.
Police confirmed the man and woman were both married and former congregants of Kingdom hall.