Crime

Already facing life in prison, Boise man convicted of rape earns another sentence

Ada County Courthouse at 200 W Front St. in Boise, Tuesday, Nov. 11, 2025.
Ada County Courthouse doswald@idahostatesman.com

A 22-year-old Boise man recently sentenced to life in prison was given another 70 years after he was convicted of sexually assaulting two women, according to a news release from the Ada County Prosecutor’s Office.

Fourth Judicial District Judge Lynn Norton sentenced Isaiah Williams on Friday to at least 43 years in prison, with another 27 years he could’ve spent on parole — if it weren’t for his underlying sentence from a separate criminal case. Just three weeks ago, another judge, Cynthia Yee-Wallace, handed him a life sentence for the assault and sexual abuse of underage girls, the Idaho Statesman reported.

There is no possibility of parole in that sentence.

“You are the type of person that every parent fears when they send their children off to college,” Yee-Wallace told him during his sentencing last month, referring to one of the sexual assaults taking place on Boise State University’s campus. “Very few people who come before me truly engage in predatory behavior, and you are one of them.”

In Friday’s case, he was convicted of two counts of forcible penetration with a foreign object and one count of rape, as well as drug charges.

Back in November 2024, Williams met the women through social media, the prosecutor’s office said. On separate occasions he invited them to his apartment near Boise State University “under the pretense of a casual visit,” according to the news release. Once alone with them, he “sexually assaulted them despite their repeated objections,” the release said.

Prosecutors argued that he would continue to be a risk to the community if he’s ever released, saying that his behavior was a result of immaturity but also was highly predatory.

Alex Brizee
Idaho Statesman
Alex Brizee covers criminal justice for the Idaho Statesman. A Miami native and a University of Idaho graduate, she has lived all over the United States. Go Vandals! In her free time, she loves pad Thai, cuddling with her dog and strong coffee. Support my work with a digital subscription
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