Margaret Richesin, 40, is being evaluated at Lakeshore Mental Health Institute in Knoxville and won’t be taken into custody until her release from the mental health facility, said Sheriff’s Office Investigator Charlie Cosner. Richesin had a history of mental problems that had triggered 911 calls to their home before Sunday’s shooting, Cosner said.

She allegedly shot her husband, 30-year-old Joey Richesin, multiple times with a .40 caliber pistol about 8:45 a.m. at their home off Oakland Road near the Monroe County line, according to police accounts. Her husband managed to make it to a neighbor’s home and called 911.

Richesin suffered two bullet wounds in his chest, two in his abdomen, one in his right leg, and one in his back, Cosner said. Police aren’t sure exactly how many times he was shot because it wasn’t immediately clear how many of the injuries were exit or entrance wounds, he said.

A motive hasn’t been established, Cosner said, and Joey Richesin hasn’t been interviewed yet by police because of the severity of his injuries. “The only communication (with him) is the 911 tape,” he said.

He was taken to the University of Tennessee Medical Center immediately following the surgery and endured seven hours of surgery on Sunday, Cosner said.

His wife also hasn’t given police her side of the story, Cosner said.

“She wouldn’t talk to me at all,” he said. “She decided she wanted a lawyer before we got into any kind of questioning.”