Kelly Lynn Miller, 36 - a former Alabama stripper and prostitute - was handed a five-year sentence for mowing down truck driver Donald Goodwin, 56, in 2004.
Miller was released on $50,000 appeal bond in 2009 but fled to Thailand, where she changed her name to Bea, switched from blonde to brunette and threw away her U.S. passport.
The fugitive, who gave birth to a baby boy while on the run, was finally captured last week and faces being deported to the U.S. to serve her original five-year jail term.
However, the Daily Mail Online revealed she is also linked to another fatality involving a man who died after undergoing an experimental drug treatment at an unregistered Thai clinic.
Australian Brodie Smith, 33, checked into the Ibogaine Thailand retreat on Koh Phangan island to try to kick his methamphetamine addiction.
Miller – a former nanny with no formal medical training - is said to have worked there as an assistant to two American expats.
All three have been accused of administering Smith with ibogaine, a dangerous herbal hallucinogen derived from an African tree.
The substance is used in tribal rituals in Gabon and neighboring states where many believe it can be successfully used to cure drug addiction.
However, the World Health Assembly warns that its psychoactive properties are highly dangerous, and users say it sends them into a dream-like psychedelic state.
Mr Smith's girlfriend Kara Spark, 26, says he stopped breathing shortly after taking his second dose along with another drug - thought to be Valium - during the $5,000 treatment last October.
The clinic has denied giving Mr Smith ibogaine, saying the backpacker from Mandurah, Western Australia, injected himself with an overdose of ‘illegal narcotics’.
Thailand's Ministry of Health took no action over the death - but Mr Smith's mother Diane Tucker has called on the Australian government to push for a proper inquiry.
She has also identified Miller as Bea - the glamorous female assistant to the retreat's principal operators, Mike Picone and Victor Cracknell, both from Buffalo, New York.
Mr Cracknell is believed to be the father of Miller’s baby boy, who was born two months ago on the island of Samui.
Miller was finally snared on the remote island of Koh Lanta, off the coast of Thailand’s Krabi province, following a tip from the U.S. Embassy.
The Phuket News reported on Millers capture last Thursday (March 12).
http://www.thephuketnews.com/wanted-american-woman-arrested-near-phuket-51349.php
But Miller's mother Penney, 70, told Daily Mail Online she only knew she was in Thailand because the U.S. Marshals told her. Other than that all she knows is what she hear on the TV.
She said, 'She called me a few months back to say "Mom, I’m pregnant," that was the first time I'd heard from her since she left.
'Had I had a chance to speak to her sooner, of course I would have told her to come back and turn herself in.
'At least I know she's finally coming home.’
Miller struck and killed Donald Goodwin while driving drunk on Interstate 459 near her home in Hoover, just south of Birmingham, in September 2004.
The Florida truck driver had pulled over in the emergency lane and was checking his tires when Miller hit his vehicle and careened into him.
Miller was due to go on trial in January 2007 on a charge of vehicular homicide but pleaded guilty.
She was set to report to prison but fled Alabama after making a $50,000 appeal bond and was officially declared a fugitive in 2010.
Probation papers describe her as a former nanny who left her $10-an-hour job to become a ‘self-employed entertainer’ making $4,000 a month.
But Daily Mail Online revealed that the busty divorcee led a seedy double-life as an exotic dancer and prostitute.
A law enforcement source said: 'Kelly Miller is a very pretty girl from a good, upper-middle class family.
‘She's not stupid. She's entrepreneurial; she’s a survivor. She is a very good business person with an ability to manipulate men.
‘This business in Thailand fits exactly with the sort of person she is. She was never going to go over there to become a barrister or a newspaper reporter.
‘There’s no doubt she was working here as a prostitute. She probably carried on doing what she was good at in Thailand.’
Miller separated from her ex-husband Brett Street before her fatal DUI crash. Mr Street committed suicide in 2007 but his father Chris, 67, insisted his death had nothing to do with Miller and described her as a ‘pretty, sweet girl’.
Former neighbours in the quiet Hoover street where she lived before vanishing overnight remember her less fondly.
They told Daily Mail Online they suspected she used her three-bedroom, $350,000 home as a set for porn films.
One said: 'This isn't the sort of neighborhood where you expect to see a Mercedes Benz or a limo but they would be parked outside her house all weekend.
'I don't know for sure if they were doing porn but people would turn up in all sorts of costumes.
'We would see all women coming and going in cheerleader outfits. The girls were all cute and there were a lot of blondes.
'The men would wear leather trousers and there was even one we saw wearing military fatigues - it was all very entertaining.’
According to her housemate she was obsessed with facial surgeries. 'She had certainly had her breasts done. They were very big - we called her Jugs.'
Bill Veitch, the chief deputy district attorney who originally prosecuted Miller said she would likely have only served half of her five-year jail sentence for killing Mr Goodwin had she gone straight to prison.
With good behaviour he predicts Miller will now serve the full five years - thought probably not any more.
‘If she had stayed here she would have likely been out in less than three years,' he told Daily Mail Online.
‘Now she's got a two-month-old child, honestly I think her capture is a blessing for that child that can now grow up here and a normal life.
‘It really hurt Donald Goodwin’s family when she ran. They are just profoundly grateful to the U.S. Marshals for tracking her down.’