CHANNELVIEW, Texas -

Investigators have determined how a missing woman whose body was found underneath her home died.

According to the Harris County Institute of Forensic Sciences, Rosemarie Hutcheson, 52, committed suicide. She died from a gunshot wound to the chest, investigators said.

Hutcheson was last seen alive in Channelview on Friday. Texas EquuSearch volunteers found her body about 2:30 p.m. Tuesday.

Hutcheson's husband, Sam, said his wife went for a walk and did not come back home.

"I said, 'Where are you going?' She didn't respond and she looked at me," Sam Hutcheson said.

Rosemarie Hutcheson had been suffering with depression recently, her husband said.

"Her depression level has been going up for probably the last two months," Sam Hutcheson said. "Stress has been building because of our daughter."