Home footage shows previously unseen interactions between Alissa and her father

THE shocking moment a grieving sister confronts her father about the disappearance of her half-sister has been captured in a new documentary.

Alissa Turney vanished without a trace at the age of 17 after the final day of her junior year of high school.

Her sister, Sarah, has campaigned for justice for her sister for years after she accused her father Michael Turney of murder.

In a new documentary Family Secrets: The Disappearance of Alissa Turney, Sarah's final conversation with her dad gives a chilling insight into the bizarre missing persons case.

Alissa, an ordinary 17-year-old high school student with a part-time job at Jack-In-The-Box, vanished in May 2001.

She had gone to Paradise Valley High School in Phoenix, Arizona for the last day of her junior year, but was never seen again.

Alissa told her boyfriend she was going for lunch with her stepdad.

Turney later told investigators the pair had argued and Alissa had run off.

At the time, Sarah Turney was just 12 and knew that her older sister had long harbored dreams of running away.

So when her father, Michael, told her Alissa had left of her own accord, she believed him.

She even found a note in Alissa's room saying that she was heading to California.

But the new documentary that airs on Oxygen Sunday, October 13, uses home footage to show previously unseen interactions between Alissa and her father.

In one scene, she begs her father to turn off the cameras as she comes out of her job at a fast food restaurant.

Alissa's mysterious disappearance captured the public imagination after her sister shared the story in a series of TikToks.

She also started a podcast, Voices for Justice, which highlights not only Alissa's case but that of other missing persons but also unsolved murders.

Increased attention on the case saw Michael Turney arrested for second-degree murder in 2020.

Turney was acquitted last year of his daughter's murder in a Maricopa County courtroom.

The acquittal means Turney cannot be tried again for second-degree murder.

Alissa's body has never been found.

In a new interview, Sarah sits down with her father for the first time in years and asks him directly whether he killed Alissa.

She also asks Turney whether he sexually assaulted his stepdaughter.

At one point, Turney loses his temper, telling his daughter, "If you continue on with your attitude, Sarah, I'll leave, I'm serious."

After he accuses her of being aggressive, Sarah responds, "I'm not being hostile. You're trying to gaslight me.

"You're continuing your abuse and I'm not gonna take it."

He tells her to calm down, to which Sarah replies that she will calm down when she finally gets the truth.

Turney continues to taunt Sarah in the interview, at one point asking her if the longtime detective on Alissa's case is her new "daddy."

"Why are you doing this, Sarah? To make money off your dead sister?" Turney asks after a heated argument.

He then catches himself and adds, "If she is dead."

The interview shows Turney, 76, being patted down for weapons as he walks slowly into the room carrying a cane.

He pulls out a phone and records the interview, later posting that footage on YouTube.

FINAL MEETING

Sarah remembers being on a field trip at the waterpark on her last day of school in May 2001, the day her life changed forever.

Her father picked her up from school and took her for lunch as he told her her sister was missing.

Turney later told the Phoenix Police Department that during their lunch, the pair had argued over some of Alissa's behavior and her desire for more freedom.

The former sheriff's deputy raised six children on his own after his wife, Barbara Strahm, died of cancer nine years before.

He had three older boys from his previous marriage and his wife had Alissa and her brother John from an earlier relationship.

Together, they had Sarah, Turney's only biological daughter.

In the emotional interview, Sarah asks Turney why, as a former cop, he didn't raise the alarm when his stepdaughter disappeared.

Instead, Alissa was reported as a runaway, meaning police didn't investigate.

EERIE FOOTAGE

Going through old home movies, Sarah says she began noticing strange patterns of behavior between her father and Alissa.

In one video she later shared on TikTok, Alissa can be heard yelling "Sarah, dad's a pervert."

The clip, which reached more than 21 million views on the video platform, was partly responsible for reigniting interest in Alissa's disappearance.

In 2017, Sarah met with her father and recorded their conversation where she confronted him about Alissa's disappearance.

"Be there at the deathbed, Sarah," he reportedly told her. "I will give you all the honest answers you want to hear."