4-year-old shot and killed deputy sheriff's wife

 4-year old boy shot and killed the wife of a Tennessee sheriff's deputy over the weekend, police say.

On April 6, Wilson County Deputy Daniel Fanning was inside his home showing his weapons collection to a relative when the officer's wife and young nephew entered the room. The child grabbed one of Fanning's loaded guns off the bed and fired a single shot.
The bullet struck Josephine Fanning, the deputy's 48-year-old wife. Despite efforts to revive her, Josephine was pronounced dead at the scene.
The gun used in the shooting was not the officer's service weapon, nor was he on duty at the time of the incident, The Tennessean reported.
According to CBS News, Fanning is a school resource officer at two area elementary schools. He and Josephine wed last year.
Sheriff Robert Bryan called the shooting a terrible accident.
"It's a sad, sad set of circumstances," Sheriff Bryan told WSMV.
At this time, charges are not pending. However, the Tennessee Bureau of Investigation is examining the incident.