Three Arvada high school students arrested in rock-throwing horror that ended in death of Colorado woman driving to work

THREE high schoolers have been arrested after they allegedly killed a driver by throwing a large rock through her windshield.

Last week, the group of 18-year-olds reportedly targeted at least seven different vehicles on roads in Jefferson County – a suburban area west of Denver, Colorado.

Alexa Bartlett, 20, was killed last week when a rock was thrown at her car while she was driving in Colorado

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Alexa Bartlett, 20, was killed last week when a rock was thrown at her car while she was driving in ColoradoCredit: Jefferson County Sheriff's Office
The rock flew through Bartell's windshield and fatally wounded her before the vehicle veered off the road into a nearby field

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The rock flew through Bartell's windshield and fatally wounded her before the vehicle veered off the road into a nearby fieldCredit: WVLT

Alexa Bartell, 20, was killed shortly before 11pm on April 19 after one of the rocks hit her car.

Joseph Koenig, Nicholas Karol-Chik, and Zachary Kwak were arrested for first-degree murder at their parents' homes in Arvada on Tuesday night, ABC News reported.

They're all current high school seniors.

Investigators haven't determined who was driving, but they believe all three suspects participated in throwing the rocks.

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Authorities expect to file more charges against the men in the near future.

Bartell was on the phone when she died. The friend she was talking to became concerned after the line suddenly went silent.

They managed to locate Bartlett by tracking her phone and found her fatally wounded inside the car, which had veered into a field near the Rocky Flats National Wildlife Refuge.

Of the six other drivers who were targeted before Bartell was killed, two suffered minor injuries.

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One of the other victims, Nathan Tipton – an Uber driver, spoke to the Denver Post earlier this week.

"It sounded like a shotgun" when a rock hit the passenger side of his van, Tipton said.

He quickly pulled over. The driver behind him, who was also hit, stopped to make sure Tipton was okay.

It was dark at the time, so neither driver could tell who had thrown the rock.

Tipton didn't find out about Bartlett's death until the next morning when his wife saw a report on the news.

"It’s horrible, no one should lose their child in such a random act," he said.

"I hope Alexa and her family can get some type of justice."

Joseph Koenig, 18, is one of three high school seniors from Arvada arrested in connection to Bartlett's death

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Joseph Koenig, 18, is one of three high school seniors from Arvada arrested in connection to Bartlett's deathCredit: Jefferson County Sheriff's Office
Zachary Kwak, 18, was one of three teens charged with first-degree murder after the were taken into custody on Tuesday night

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Zachary Kwak, 18, was one of three teens charged with first-degree murder after the were taken into custody on Tuesday nightCredit: Jefferson County Sheriff's Office
Nicholas Karol-Chik, 18, also participated in the alleged crime spree where the three teens targeted six other drivers, two of whom were injured

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Nicholas Karol-Chik, 18, also participated in the alleged crime spree where the three teens targeted six other drivers, two of whom were injuredCredit: Jefferson County Sheriff's Office

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