Grant Stevenson

Grant Stevenson

CALDWELL — A 22-year-old Nampa man will serve up to 15 years behind bars for making terrorist threats later found to be a hoax.

Grant Stevenson was sentenced Monday, almost nine months after his arrest for making fake bomb threats in Nampa.

On March 7, the Nampa Police Department got a social media message reporting bombs planted in the 1700 block of South Juniper Street, according to a press release from the department. The message, sent by Stevenson through a fake account, warned of five car bombs and a bomb planted in an apartment unit using Sarin gas.

On Monday, both Canyon County Chief Prosecutor Bryan Taylor and Stevenson’s defense attorney Peter Mommer requested a 15-year sentence, with three years to be served before being eligible for parole. The recommendation, which both lawyers agreed to in September, followed a Rule 11 plea agreement, meaning both sets of lawyers agree to the same sentence if the defendant pleads guilty to a specific criminal charge.

The threats caused nearby Skyview High School and the Nampa Recreation Center to be placed on lockdown, Taylor said at Monday’s sentencing. Residents were asked to shelter in place for approximately seven hours during the investigation, according to a previous Idaho Press report.

Mommer reminded 3rd District Judge Davis VanderVelde that this incident was “a nonviolent offense.”

“He’s here to accept responsibility,” Mommer said. “He knows what he did caused a lot of panic in the community.”

Stevenson declined to address the court Monday.

That was not the first time Stevenson had made threats. He served three years in a juvenile detention center for bomb threats made at various schools throughout the Treasure Valley, including Kuna, Caldwell and Skyview high schools.

The time spent in juvenile detention was not enough of a deterrence, Taylor said.

When Stevenson made the threats in March, Nampa police officers were also told by a witness that Stevenson was mad at a specific couple because they were dating — and one of them, a woman, lived in the area targeted by the fake bomb threats. Stevenson had contacted her under the same name he used when making the threats and threatened to kill her boyfriend, according to a probable cause affidavit.

Stevenson was initially charged with felony terrorism, one count of use of weapons of mass destruction and two counts of using a telephone to intimidate or harass a witness. As part of a plea deal Stevenson took in October, he pleaded guilty to felony terrorism and the remaining charges were dismissed.

He was charged with second-degree stalking, but that charge was later dismissed as part of a plea deal. A no-contact order was extended for 20 years preventing Stevenson from seeing three victims, but their relationship to Stevenson was not expanded on during the sentencing.

Stevenson was ordered to pay $2,900 in restitution to the Nampa Police Department and over $5,000 to the Idaho Office of Emergency Management.

Emily Lowe is the Canyon County public safety reporter. Follow @EmLoweJourno on Twitter