DALLAS (AP) — Dallas police say an officer returning home after her shift mistook a neighbor’s apartment for her own and shot and killed the man who lived there.

The officer will be charged with manslaughter, the police chief said Friday.

It’s not clear whether there was any interaction between the two before 26-year-old Botham Jean was shot around 10 p.m. Thursday, police Chief U. Renee Hall said during a news conference.

“Right now there are more questions than there are answers,” Hall said.

The officer called dispatch to report that she had shot the man, police said. She told responding officers that she believed the victim’s apartment was her own when she entered it.

The responding officers administered first aid to Jean. He was taken to a hospital and pronounced dead.

Jean, a native of the Caribbean island country of St. Lucia, was black. Hall said the officer is white, but she didn’t say whether investigators believe race was a factor in the shooting.

Police haven’t released the name of the officer, who had arrived home in uniform. She wasn’t injured. She will be placed on administrative leave pending the outcome of the investigation, police said.

Authorities haven’t said how the officer got into Jean’s home — if the door was unlocked, or if he opened it for her. The apartment complex, South Side Flats, is in the Cedars neighborhood, south of Dallas’ downtown and just a few blocks from police headquarters.

At a Friday morning news conference, Sgt. Warren Mitchell acknowledged there are many questions about what happened that he couldn’t answer.

“We still have a lot to do in this investigation. So there’s a lot of information I understand you guys want but this is all we can give you at this time,” Mitchell said.

When asked if anyone else had witnessed the shooting, Mitchell replied, “We have not spoken to anyone else at this time.”

Residents of the apartment complex said they can access their units with a regular key or through a keypad code.

Two women who live on the second floor near where the shooting happened said they heard a lot of noise late Thursday.

“It was, like, police talk: ‘Open up! Open up!'” 20-year-old Caitlin Simpson told The Dallas Morning News.

Jean grew up in St. Lucia and attended Harding University in Searcy, Arkansas, where he often led campus worship services before graduating in 2016, the school said in a statement. That July, he went to work for the accounting and consulting firm PwC in risk assurance.

Police said they are conducting a joint investigation with the Dallas County district attorney’s office.

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Associated Press writers Jamie Stengle and David Warren contributed to this report.

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