via CBS8
- Sierra Halseth, 16, and Aaron Guerrero 18, were charged with the murder of Halseth's father Daniel.
- Police believe the pair committed the crime after their parents forbade them from seeing each other.
- An unearthed video taken shows Halseth and Guerrero smiling and joking about "murdering somebody."
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A disturbing video shows Nevada teens Aaron Guerrero and Sierra Halseth joking about "murdering somebody" days after the death of Halseth's father, whom they are accused of killing.
Halseth's father Daniel was discovered stabbed to death and burned in a house fire that is believed to have been set by the couple.
Guerrero, 18, and Halseth, 16, are charged with the murder of Daniel Halseth, whose body was discovered by authorities on April 9.
They face eight additional charges including conspiracy to commit murder, arson, credit card fraud, and robbery. According to News 3, their parents forbade them from seeing each other after discovering their plan to run away to Los Angeles together.
In the days before the killing, Sierra Halseth and Guerrero were caught on surveillance video buying a circular saw, as well as bleach, lighter fluid, and disposable gloves, according to the Las Vegas Review-Journal.
Receipts - which show that Sierra Halseth used her father's credit card to purchase the items - were later discovered amid the ashes of the Halseth home.
Police believe the pair were hoping to dismember Daniel Halseth's body. Officers told Fox 5 they found the circular saw "with apparent blood and tissue" caught up in the saw.
After the killing, Halseth and Guerrero fled to Salt Lake City, where they spent several days living out of Halseth's blue Nissan Altima. The pair were eventually caught after they evaded a railway fare, according to KSNV. Police then discovered a bloody blanket in the car's trunk.
In examining the pair's cell phones, police found a chilling video in which the pair a joke about "murdering somebody."
"Welcome back to our YouTube channel… Day 3 after murdering somebody…" Guerrero says in the video.
"Whoa, don't put that on camera," Halseth replies, laughing.
"It was worth it," Guerrero says, smiling, while pretending to choke Halseth.
Halseth and Guerrero were extradited back to Las Vegas and will next appear in court on June 14.
Though Halseth's age exempts her from the death penalty, prosecutors are currently weighing whether to seek the it for Guerrero.