UPDATE: Former PB County yoga instructor not guilty of murdering twin sister


UPDATE, 9:20 p.m.: The former Palm Beach County yoga instructor accused of murdering her twin sister in Hawaii in 2016 was found not guilty Thursday night. 

Judge Peter Cahill, who presided over a bench trial, acquitted Alison Dadow, also known as Alexandria Duval, in the death of her twin of her sister Ann Dadow, also known as Anastasia Duval. The verdict was streamed live by Hawaii television station KITV 4 News.

In his remarks leading up the verdict, Cahill said the state failed to prove its case beyond a reasonable doubt and called testimony that Ann was pulling Alison’s hair prior to a crash that sent their vehicle over a cliff a key element in the case.

Original story:

After testimony concluded Wednesday in Hawaii, Judge Peter Cahill is expected to render his verdict Thursday in the murder trial of former Palm Beach County yoga instructor Alison Dadow

Dadow, who recently has gone by the name Alexandria Duval, has pleaded not guilty to second-degree murder of her twin sister and business partner in a 2016 crash.

Dadow declined to testify in her own defense Wednesday.

Read The Post’s complete coverage of Ann Dadow’s death and Alison Dadow’s arrest.

The Dadow sisters ran Twin Power Yoga studios in West Palm Beach and Palm Beach Gardens from 2011 until 2014 before abruptly moving from Palm Beach County amid debts and accusations that they didn’t pay their employees. They traveled through other resort towns before ending up in Hawaii in December 2015. 

On May 29, 2016, Alison Dadow, 39, drove her SUV on Maui’s winding, dangerous Hana Highway with her sister Ann -- then calling herself Anastasia Duval -- in the passenger seat. 

New testimony on Wednesday by Wayne Slagle, an “accident reconstructionist” who was the only witness called by the defense, said the data shows Alison Dadow had engaged in “erratic driving” before the 2016 Ford Explorer fell down a 200-foot cliff, according to the Maui News.

Slagle, however, said he doesn’t think Dadow was trying to drive the SUV off the cliff, contradicting what a Maui police traffic investigator said in testimony Tuesday

“This is consistent with somebody trying to find the brake and not able to do it,” said Slagle. “It’s not consistent with somebody five seconds before, or even four seconds before, trying to put it to the floor, trying to go over a cliff or rock wall.”

Report: Ann Dadow may have wanted ‘protection’ from twin, friend says

A witness who saw the SUV before the crash said that the passenger was pulling the hair of the driver, according to the Maui News. “I believe there was a lot of jerking that went on in reaction,” Slagle said. 

Slagle, who said he has done accident reconstruction and engineering work for 25 years, said data retrieved from the SUV didn’t indicate that Alison Dadow sharply turned the wheel left, or tried accelerating the SUV into the rock wall or off the cliff. 

In terms of what caused the crash then, Slagle said from what he can tell, “the left front tire hit the berm, you can almost call it a ramp,” which shifted and rotated the SUV into the rock wall, the Maui News reported. 

After the SUV smacked into the wall, the front tire went airborne. Slagle said. “The speed increases because the tire is not touching the ground,” he said. “It goes over the edge.”

Ann Dadow died from severe head trauma when the SUV crashed down the cliff.

Yoga twins’ ‘Jekyll and Hyde’ passage through Palm Beach County

Alison Dadow said Wednesday, “I wish not to testify,” when asked about her constitutional right to testify or not testify by Cahill. 

Shortly after the wreck, Dadow was charged with second-degree murder, but a Maui County judge threw out the case on in June 2016, citing a lack of evidence.

Once the charges were dropped, Dadow left Hawaii and moved to upstate New York, where the twins grew up. But in October 2017, a Maui County grand jury charged her again with second-degree murder and police arrested her on a warrant. 


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