Five criminal cases that gripped the nation and shaped the turmoil of 2025

1. America vs. Luigi Mangione

The murder charge against Luigi Mangione took everyone by surprise late last year, and it’s poised to dominate headlines in 2025. Mangione was arrested on December 19, 2024, for stalking and murdering UnitedHealthcare CEO Brian Thompson in midtown Manhattan, and perhaps what made it even more shocking was that it occurred in broad daylight. His mugshot—surprisingly youthful—quickly went viral, drawing a strange sort of “support” online.

This incident sparked discussions about the medical industry, although Mangione is pleading not guilty. A New York judge dismissed a related terrorism charge in September, but the second-degree murder charge remains, which carries a potential life sentence. A pretrial hearing held in December focused on whether evidence from his arrest should be excluded, with a decision expected by May 18. A trial date may be set around that time as well.

2. Penn State vs. Brian Koberger

The Idaho Student Murder Trial has been ongoing since 2022, when Brian Koberger was charged with multiple counts related to the deaths of four University of Idaho students. Koberger, at the time a criminology student, was held without bail in Pennsylvania before being extradited to Idaho’s Rutter County Courthouse.

Initially, a jury trial was slated for August 2025, but Koberger accepted a plea deal shortly before it started. To avoid the death penalty, he pled guilty to all charges, resulting in a sentence of four consecutive life terms without the possibility of parole, as well as additional time for robbery. Currently, he’s serving his sentence at the Idaho Maximum Security Institute.

3. USA vs. Sean Combs

The case against Sean “Diddy” Combs wrapped up on July 2, 2025, after months of headlines about his alleged long-term criminal activity and relationships. Federal charges included sex trafficking and racketeering conspiracy, and a jury found him guilty.

Testimonies, notably from his ex-girlfriend Kathy Ventura, painted a damning picture. He was sentenced to slightly over four years in federal prison but will get credit for time served. Currently, he’s incarcerated at FCI Fort Dix in New Jersey, though his release set for June 4, 2028, has reportedly been delayed due to violations of alcohol regulations.

4. State of Massachusetts vs. Karen Reed

This high-profile case gained significant media attention. Karen Reed was tried for the murder of her police officer boyfriend, whose body was discovered outside a party in the snow in 2022. Reed went through a tumultuous legal journey that resulted in two trials, the first ending in a mistrial. This June, she was acquitted of the more serious charges but found guilty of DUI, receiving a one-year suspended sentence.

Following the trials, Reed filed a lawsuit against Massachusetts State Police, alleging misconduct and false accusations. Some claims relate to civil rights issues under the Fourth Amendment and have led to federal complaints. A hearing originally scheduled for December was postponed until January 6, with judges asking both sides to narrow down their disputes.

5. People of Colorado vs. James Craig

In a case that felt almost like a thriller, Colorado dentist James Craig was found guilty of murder on July 30, 2025. He had been accused of poisoning his wife with a protein shake mixed with cyanide and another substance found in eye drops. The prosecutor indicated that financial issues and an affair were motives.

On top of the first-degree murder conviction, Craig also faced charges for witness tampering, perjury, and assaulting an investigator while in custody. The judge sentenced him to life without parole, plus an additional 33 years for the other charges. He’s currently at the Bent County Correctional Facility in Las Animas, Colorado.