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Pace, Florida: Investigators say an 86-year-old Florida woman fatally beat her 89-year-old husband with a walking cane.

Santa Rosa County Sheriff's Officials say Ramona Maxine Lund is charged with murder and is being held in the jail's infirmary on $250,000 (Dh918,237) bond as authorities work together to evaluate whether she suffers from dementia.

A neighbour called 911 on Saturday after seeing her standing over Francis Lund's body on the front porch. He told detectives he thought Lund had fallen and his wife was trying to help him up. The neighbour performed CPR until paramedics arrived.

Inside the home, investigators found pieces of the cane covered in blood.

The Pensacola News Journal reports that the sheriff, prosecutor and public defender have taken the unusual step of agreeing to evaluate her mental competency.