Former prison guard Vicky White has died from a self-inflicted gunshot wound after she was involved in a police chase.
She was in a car with murder suspect Casey White after he escaped from a prison at the end of last month.
The pair had been on the run for 11 days and authorities were tipped off to their whereabouts, according to the Daily Mail.
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Cops descended on a motel in Evansville, Indiana, which sparked a car pursuit that lasted several minutes.
Authorities deployed a spike belt to get the fugitive duo's car to stop.
US Marshal Matt Keely told CNN Vicky White shot herself in the head during the pursuit.
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She was described as in a 'pretty bad shape' and was taken to hospital for treatment.
However, Vanderburgh County Coroner Steve Lockyear said White was declared dead at 7.06pm local time.
No cause of death has been released yet and the coroner will perform a proper autopsy on May 10.
Authorities have been hunting for Vicky and Casey White (no relation) after the latter was broken out of Lauderdale County Jail, located in Florence, Alabama.
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Vicky White was caught on camera sneaking the 6ft 9 ‘monster’ out of the facility, which sparked a widespread manhunt.
Lauderdale County Sheriff Rick Singleton has thanked investigators who have helped them track down Vicky and Casey White.
He told reporters: "Most escapes - from a county jail especially - they're not planned. They're just sort of spontaneous. There are no resources available, no plan in place.
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"This escape was obviously well planned and calculated. A lot of preparation went into this.
"They had plenty of resources, had cash...They had everything they needed to pull this off.
"We were starting from ground zero, and not only that, we started – they got a six-hour head start on us."
Investigators and inmates warned that Vicky and Casey had developed a ‘special relationship’ with each other while he was behind bars.
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Security footage of the event, which took place on 29 April, shows the 56-year-old widow holding a door open for White - still wearing handcuffs - before the two of them jumped into a black car together and sped off at approximately 9.30am.
The day the two went missing was supposed to be Ms White's last day on the job after 25 years of ‘exemplary’ service.
Casey White was first arrested back in 2015 following a violent crime spree.
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He was serving a 75-year sentence for attempted murder and was set to also have an upcoming trial for killing 58-year-old Connie Ridgeway, which he confessed to, The Guardian reports. He faces execution if convicted.
White has been described as a 'dangerous monster' who promised to kill his ex-girlfriend if he ever got out, with a police report claiming: "He wanted to kill her and have the police kill him, and that his only regret was that neither was successful.
"He stated that if he was released he would kill the victim.”
Casey White will be taken back to Alabama to be arraigned.
Stewart Perrie