Robert Hollie had been named as a person of interest in the earlier shooting.
A police officer in Alabama has been shot and killed after a stand-off with a murder suspect, who also lost his life in the incident.
During his remarks at a news conference Wednesday, Mobile Police Chief Lawrence Battiste said he remembered Billa saying, "I got into law enforcement because when I was in high school there was a law enforcement officer on our campus that consistently encouraged me to do good things".
Governor Kay Ivey said in a statement that Alabama "was mourning the loss of one of our own Mobile Police Officers" and added "my prayers are with his wife, young child and the city of Mobile".
Fox News said the dead woman's daughter, Octavia Poellnitz, said there was was bad blood between her mother and and Mr Hollie.
"He didn't love my momma", she said.
Police surrounded the residence and exchanged fire with Hollie, before entering the premises about three hours later to find the man dead.
"Billa has great attention to detail skills and shows commitment daily to providing a professional level of law enforcement service to the city of Mobile". He spoke about his intentions as a police officer and goals for the force as a whole.
"We need to go back to helping people instead of just taking them to jail and creating bigger problems", he said, Officer.com reported. After the shooting Officer Billa was transported to the hospital, where he died just after 2am.
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