Homicide

Twin sisters' bickering relationship ends in deadly crash

  • This June 2016 booking photo released by the Maui County Police Department shows Alexandria Duval. A woman who was driving a vehicle when it plunged off a Hana, Hawaii cliff is charged with second-degree murder in the death of her twin, who was in the passenger's seat. Prosecutors say Alexandria Duval, who is also known as Alison Dadow, intentionally caused the death of her identical twin sister, Anastasia Duval, also known as Ann Dadow. The incident took place on May 29, 2016. (Maui County Police Department via AP)

    This June 2016 booking photo released by the Maui County Police Department shows Alexandria Duval. A woman who was driving a vehicle when it plunged off a Hana, Hawaii cliff is charged with second-degree murder in the death of her twin, who was in the passenger's seat. Prosecutors say Alexandria Duval, who is also known as Alison Dadow, intentionally caused the death of her identical twin sister, Anastasia Duval, also known as Ann Dadow. The incident took place on May 29, 2016. (Maui County Police Department via AP)  (The Associated Press)

  • In this May 30, 2016 photo provided by Tom Johnson, a vehicle sits at the bottom of a cliff off Maui's Hana Highway in Hana, Hawaii. Alexandria Duval, who is also known as Alison Dadow, was driving the vehicle when it plunged off the Maui cliff May 29, and is charged with second-degree murder in the death of her twin, Anastasia Duval, also known as Ann Dadow, who was in the passenger's seat. (Tom Johnson via AP) MANDATORY CREDIT

    In this May 30, 2016 photo provided by Tom Johnson, a vehicle sits at the bottom of a cliff off Maui's Hana Highway in Hana, Hawaii. Alexandria Duval, who is also known as Alison Dadow, was driving the vehicle when it plunged off the Maui cliff May 29, and is charged with second-degree murder in the death of her twin, Anastasia Duval, also known as Ann Dadow, who was in the passenger's seat. (Tom Johnson via AP) MANDATORY CREDIT  (The Associated Press)

  • In this May 30, 2016 photo provided by Tom Johnson and taken with a drone, a vehicle sits at the bottom of a cliff, left center, off Maui's Hana Highway in Hana, Hawaii. Alexandria Duval, who is also known as Alison Dadow, was driving the vehicle when it plunged off the Maui cliff May 29, and is charged with second-degree murder in the death of her twin, Anastasia Duval, also known as Ann Dadow, who was in the passenger's seat. (Tom Johnson via AP) MANDATORY CREDIT

    In this May 30, 2016 photo provided by Tom Johnson and taken with a drone, a vehicle sits at the bottom of a cliff, left center, off Maui's Hana Highway in Hana, Hawaii. Alexandria Duval, who is also known as Alison Dadow, was driving the vehicle when it plunged off the Maui cliff May 29, and is charged with second-degree murder in the death of her twin, Anastasia Duval, also known as Ann Dadow, who was in the passenger's seat. (Tom Johnson via AP) MANDATORY CREDIT  (The Associated Press)

Identical twin sisters Alexandria and Anastasia Duval always lived together, played together and worked together, operating what were once two of the hottest yoga studios in the Palm Beach, Florida, area.

They would finish each other's sentences, and while they had boyfriends, their relationship seemed to come first.

But after a reality TV project fell through, the two descended into a cross-country spiral of business failures, debts, arguments and drunken run-ins with the law that all came to a tragic end last week.

That was when their SUV plunged off a 200-foot cliff in Hawaii during what was described as a hair-pulling fight over the steering wheel.

Anastasia, 37, was killed, and Alexandria was arrested and jailed on second-degree murder charges, accused of deliberately causing her sister's death.

Her lawyer says it's not true.