A 90-year-old man shot and killed his 83-year-old wife in South Carolina over the weekend, authorities said.

Edwin Nelson gunned down spouse Sarah Nelson around 5:20 a.m. Saturday in their home on Highway 61 in Ridgeville, authorities told WCSC-TV.

Deputies arrived at the home after a 911 call from a man who said he shot his wife, and they found Sarah sprawled on the floor with a gunshot wound to the chest and her husband alive lying beside her, officials said.

A .38-caliber revolver was recovered on scene, according to the report.

The pair had always seemed like a normal couple who enjoyed each other’s company, said neighbor Bunny Igoe.

“Knowing how he loved her, they were always walking hand in hand,” Igoe said. “I think the medication that they [gave him] changed him, or something had altered his mind in order for him to come to this.”

The nonagenarian is being held without bond at the Knight Detention Center, according to WCBD-TV.

Sarah Nelson’s body was taken to the Medical University of South Carolina for an autopsy.