HOUSTON (AP) — A 76-year-old Georgia woman has been returned to Houston to face charges over the 1970 death of her husband.

Investigators say Mary Ann Rivera of Lake Park, Ga., has been charged with murder by omission and was held without bond Thursday in the Harris County Jail. Online jail records did not list an attorney for Rivera, who was extradited and booked Wednesday.

Court documents indicate Cruz Rivera died in 1970 after allegedly being doused with hot grease. His wife was arrested, posted bail and then fled with her children.

Cold case investigators recently tracked the woman to Georgia.

Authorities are trying to determine a motive for the killing.

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