Updated

A woman charged in the death of a Tennessee police officer who tried to help her has taken a plea deal.

News outlets report 42-year-old Judi Glisson on Tuesday pleaded guilty to vehicular homicide by intoxication in the 2017 death of Metro Nashville police Officer Eric Mumaw. Under her plea deal, she must serve at least 30 percent of her 12-year sentence and she'll be barred from driving for 10 years.

Mumaw and other officers were called to help a reportedly suicidal Glisson in her car on a boat ramp. Police said Mumaw was pulled into the frigid water with Glisson's vehicle when she shifted from park. His body was found hours later.

Prosecutor Kyle Anderson said Glisson didn't intend to hurt anyone, which factored into the plea deal.