Sean Grayson, former Illinois Deputy convicted in Sonya Massey killing, dies at 32

CHICAGO — Sean Grayson, the former Sangamon County sheriff’s deputy convicted of second‑degree murder in the 2024 killing of Sonya Massey, died Sunday while serving a 20‑year sentence, his attorney confirmed. He was 32.

Sean Grayson Dies Six Months Into 20‑Year Sentence

Officials have not released a cause of death. However, his attorneys previously said Grayson had advanced Stage 4 colon cancer that had spread to his liver, lungs and rectum. His condition worsened through the summer, and he sought medical release under Illinois’ Joe Coleman Act, which allows terminally ill prisoners to request early release. The Illinois Prisoner Review Board denied his request in July.

Sonya Massey Called 911 for Help

Massey, 36, called 911 shortly before 1 a.m. on July 6, 2024, reporting a possible prowler outside her Springfield home. Grayson and another deputy, Dawson Farley, responded. Body‑camera video from Farley showed Massey apologizing, crouching, and appearing frightened as she stood in her kitchen.

Grayson ordered her to remove a pot of hot water from the stove. Massey said, “I rebuke you in the name of Jesus.” Grayson threatened to shoot her if she did not comply. Moments later, he fired three rounds, striking her in the face. Massey died at St. John’s Hospital in Springfield.

Investigators later confirmed there was no intruder. Farley testified he never saw Massey as a threat and only drew his weapon because Grayson did. Prosecutors said Massey’s final words were “I’m sorry,” moments before Grayson shot her.

Conviction Followed Public Outrage

The shooting sparked protests across Illinois and drew national attention to police‑use‑of‑force failures. Grayson was fired after the shooting and initially charged with first‑degree murder. A Peoria County jury convicted him of second‑degree murder last October.

During the trial, Grayson claimed he feared Massey would throw boiling water at him. However, prosecutors argued Massey posed no threat, and Farley testified he feared Grayson more than Massey. Judge Ryan Cadagin sentenced Grayson to the maximum 20 years in January.

Grayson Diagnosed with Cancer

Grayson entered prison in January and began cancer treatment soon after. His attorneys said his condition was “irreversible and incurable,” and a medical evaluator predicted he had less than 18 months to live.

Despite his diagnosis, state officials argued his illness did not eliminate the danger he posed. Massey’s family also opposed his release. The Prisoner Review Board voted 3‑0 to keep him in custody.

Family Responds to Grayson’s Death

Massey’s family said in a statement through their attorneys that Grayson’s death “does not bring Sonya back,” emphasizing that the injustice of her killing remains.

“We wish his family prayers of peace, as we do for all who grieve a loved one. Sonya’s family knows that pain all too well and will grieve her loss the rest of their days.”

In 2025, Sangamon County, IL officials settled with the family of Sonya Massey for $10 million.

Illinois lawmakers later passed the Sonya Massey Act, requiring law enforcement agencies to closely review an applicant’s previous employment records before hiring an officer.

The Justice Department also opened a civil rights investigation after Massey’s death. The investigation led to an agreement with Sangamon County, its sheriff’s office and other agencies requiring changes to policing and emergency response. Those changes included

• additional training for interactions with people with behavioral health disabilities
• development of a mobile crisis response program.

Civil rights advocates said Massey “should be alive today” and urged continued focus on police accountability.