Maui prosecutors have charged 37-year-old Alexandria Duval with second-degree murder in the death of her identical twin on May 29.
According to witnesses, the sisters were arguing in a parked Ford Explorer when the driver accelerated the vehicle through a retaining wall and down a 200-foot cliff. The vehicle landed on a rocky shoreline, killing the passenger, identified as Anastasia Duval.
Alexandria Duval was initially reported in critical condition following the incident but was subsequently released from Maui Memorial Medical Center.
She appeared in Wailuku District Court on Monday with her right arm in a sling.
According to probable cause documents filed in court, a witness reported that the driver appeared to be in a rage. He and others saw the women arguing, with the passenger pulling the driver’s hair.
The documents say the vehicle’s air bag control module shows the driver didn’t try to brake before accelerating, making a hard left and crashing through the wall.
District Judge Blaine Kobayashi on Monday ordered Duval to remain held without bail.
Defense lawyer Todd Eddins said she wasn’t trying to harm herself or her sister.
Alexandria Duval was previously known as Alison Dadow. The deceased, Anastasia Duval, was previously known as Ann or Ana Dadow.
The sisters, dubbed “the terrible twins of yoga” by Florida media, gained notoriety after they abandoned a pair of upscale yoga studios in South Florida two years ago amid growing financial and legal troubles.
They resurfaced in Utah, where they briefly ran another studio before each filed for Chapter 7 bankruptcy protection.
The sisters had criminal histories in Florida (dating from 2002) and Utah for a litany of offenses.
The sisters’ legal trouble continued soon after their arrival on Maui in December.
They were charged with disorderly conduct and second-degree terroristic threatening in a Christmas Eve confrontation with another woman in Wailuku.
Police arrested Alexandria Duval on Friday because they found out she was trying to leave the state.
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The Associated Press contributed to this report.
