FSU student claims voices told her to kill mom, stepdad

- Detectives also questioned Nachtman's fellow student, Petra Henry, who said Nachtman acted strange, and said something unusual about her mom.

"I just heard that her mom was in a car accident and she had just got in a car accident," Henry recalled.

When investigators brought Nachtman in for questioning, she talked, at length, about her favorite books and movies, but the conversation abruptly stops the moment they want to question her about the murders.

"I suggest you hold all questions until I get a lawyer," she told detectives.

The remainder of the time, she could be seen and heard, through sheriff's office surveillance video, sleeping on the floor, sitting with legs crossed in her chair and staring at the floor, and standing with her arms crossed, staring at the wall in the police interview room.

Blood was in the driveway, laundry room and bedroom. Terrified neighbors called 911, reporting sounds of gunshots and a body in the driveway. Detectives said all the evidence linked a Florida State University student to the murder of her own mother and step father. 

Almost a year later, hundreds of documents were released, shedding light on the August 2015 murders. Meanwhile, Nicole Nachtman's attorneys say the young student heard voices, telling her to kill her mother, Myriam Dienes, and stepdad, Robert Dienes.

Part of the evidence released Wednesday includes phone conversations between Hillsborough County Sheriff's Office Detective Eric Lehr and Nachtman after, detectives said, she killed the two, then drove back to school. 

Detective: "Something happened to your mom and she's passed away... are you there Nicki, Nicki?"
Nachtman:"Yeah."
Detective: "[Another detective] is making it sound like you were involved or something."
Nachtman: "I was [at school]."

Early on, the FSU student says things detectives now say was an attempt to throw them off her trail. 

Nachtman: "Mom doesn't get along with as many people as you think."
Detective: "Well, who do you think would have a reason to hurt her?"
Nachtman: "I don't know. She's always having problems with people at work, she said."

Later in the conversation, the detective pushed back.

Detective: "I don't want to believe it. They are making it sound like your involved."
Nachtman: "No."
Detective: "You're not, are you Nicki?"
Nachtman: "No."
Detective: "You sure?"
Nachtman: "I'm sure."

Eventually, officers come in to formally arrest her

Later, Nachtman told detectives she heard screaming voices in her head telling her to kill her mother.

Additional documents and recordings could shed light on what is likely to be a long legal process. 

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