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I-Team: Teens accused of killing girl's father talk about murder in video |

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I-Team: Teens accused of killing girl's father talk about murder in video

LAS VEGAS (KLAS) -- Cell phone video, text messages and photos are just some of the evidence in a murder case against two teens.

Police say the parents of Sierra Halseth, 16, and Aaron Guerrero, 18, told them they couldn't see each other anymore. The teens planned on running away together to California, and then Sierra's father ended up murdered.

The I-Team reviewed dozens of photos considered as evidence. Many of them are too gruesome to show.

WARNING: The following story is disturbing. Reader discretion is advised.

Video evidence shows the teens talking about a murder.

"Welcome back to our YouTube channel ... Day 3 after murdering somebody ...," Guerrero says into the camera in a cell phone video.

"Whoa! Don't put that on camera," Sierra Halseth says.

"It was worth it," Guerrero responds.

Excerpts of the video are shown above.

Halseth and Guerrero are accused of killing her father, 45-year-old Daniel Halseth, in April. His body was discovered inside a Las Vegas home after his mother, Christine Halseth, and ex-wife realized something wasn't right when they hadn't heard from him.

The I-Team obtained text messages between Sierra and Christine, which read:

Christine: "I'm trying to get ahold of your dad, where is?"

Sierra: "His phone has been acting up, but he's okie. It should be all fixed by tomorrow night, no worries :)"

On Friday, the day after that exchange, Christine became increasingly worried, texting:

"Why are you doing this? ... Now the police are involved."

Two friends visited the house and found a crime scene, with smoke inside the home. Investigators say the teens stabbed Halseth and attempted to set fire to and dismember his body.

Prosecutors presented to the grand jury photos from before Halseth's body was found. They include:

  • Sierra purchasing bleach at WinCo
  • Guerrero at Home Depot buying a saw, lighter fluid, gloves and more
  • Bloody scene inside the home, with knives, saws, the lighter fluid and burnt material

Police say the teens used Daniel's bank cards to make purchases and withdrawals and put a blood-soaked rug inside the trunk of his vehicle, which they used as a getaway car.

While they were on the run, the teens recorded the above-mentioned cell phone video. They also spoke about sex and included a graphic detail, which the I-Team has chosen not to write.

Sierra is charged as an adult, because according to Nevada state law, anyone 16 and older accused of murder is automatically charged as an adult. However, she cannot face the death penalty due to her age.

The I-Team reached out to Sierra's attorney, who did not get back to us.

Guerrero can potentially face the death penalty since he is 18. His attorney, Gabriel Grasso, tells us the group that reviews whether to pursue the death penalty at the District Attorney's Office is meeting next week about Guerrero's case. He is preparing mitigation evidence for that.

Elizabeth Halseth, Sierra's mother, is a former Nevada state senator. She has not spoken publicly about the allegations against her daughter. Elizabeth and Daniel are divorced, and she has since remarried.

The I-Team reached out to a family member on Daniel's side who has been the point person. She says the family is declining to comment at this time. We wanted them to know what we would be reporting more on this case. As this situation is tragic, we want to be respectful as we report more on it.