MARIEMONT, Ohio — A Colorado Springs adult and a 14-year-old from Ohio conspired to carry out a “mass casualty event” at a high school in the city of Mariemont, according to law enforcement officials in Hamilton County.

The teenager, whose identity has not been released because he is a minor, has been arrested and charged after having a “credible plot to harm students and staff,” Hamilton County prosecutor Melissa Powers said Thursday.

The teenager had a hit list naming at least eight students and one teacher and planned to carry out the attack with a firearm he had recently acquired from his household.

During a news conference, Powers showed text messages between the teen and the Colorado Springs adult, in which they exchanged ideas pertaining to killing, rape, and the use of gas as a weapon in their planned attack.

Other messages detailed their plan of taking out the front office first as well as the use of a second gun.

The plan came to light when another student at the school told his father, Zach Swallen, that the teen was planning the attack on his school. His dad told our ABC-affiliate in Cincinnati, WCPO-TV, that he told authorities about the plan despite being threatened not to do so by the alleged shooter directly.

“The kid had the firearms and had a very elaborate plan and had every intention of carrying out that plan,” said Swallen. “My son, he doesn’t lie. He’s very literal, I could tell by his tone. And it was told to my son that if he disclosed anything about the plan to anybody, he would be shot and killed. But my son literally told me he didn’t care if he got killed as long as he could protect his classmates.”

Powers said she has requested that the suspect be bound to adult court, where if convicted, could spend life in prison. The 14-year-old will appear in court Wednesday, Feb. 21.

WCPO-TV has contacted the family of the 14-year-old charged, but they have not responded to interview requests.

No arrests have been made with the individual from Colorado Springs.

This is an ongoing investigation.

Denver 7+ Colorado News Latest Headlines | February 9, 11am

Leave a Reply

Your email address will not be published. Required fields are marked *

You May Also Like

Woman Accused of Orchestrating Attack on Sleeping Man, Then Taunting Him After Collapsed Lung Injury

Inset: Robin N. Jackson (Delaware County Jail). Background: The Indiana neighborhood where…

Woman Avoids Jail After Walmart Parking Lot Attack and Slipping Handcuffs During Arrest

Inset: Allie Barrentine (Bay County Jail). Background: A Walmart Supercenter in Panama…

Ex-Overstock CEO Defies Judge on LindellTV, Lawyers Notice

Patrick Byrne appears on Emerald Robinson’s LindellTV show in July 2026 (court…

Police: Jealous Son Accused After Dad Found in Amazon Body Bag

Inset: John Michael De Coste (El Paso Police Department). Background: The El…

Driver Hits Child After Ignoring School Bus Stop Arm, Police Say

Inset: Ashley Parsons (Scott County Detention Center). Background: The black SUV authorities…

Gainesville Man Arrested in Window Entry Cash Theft Case

Staff report GAINESVILLE, Fla. – Moses Emanuel Bryant II, 39, was taken…

Authorities Say Couple Left 3 Kids in Filthy Black Mold-Filled Home, Admitted It Was Bad and Refused Police Entry

Inset, left to right: Timothy MacDonald and Lana MacDonald (Pike County Detention…