Sean Grayson Dies in Prison While Serving 20-Year Sentence for Killing Sonya Massey

Former Illinois Deputy Sean Grayson Dies Months Into Serving 20-Year Prison Sentence for Killing Sonya Massey

Sean Grayson, the former Illinois sheriff’s deputy convicted of killing Sonya Massey after she called 911 for help, died Sunday while serving a 20-year prison sentence, according to his attorney.

Grayson’s attorney, Daniel Fultz, confirmed his death but did not disclose additional details about the circumstances.

The 32-year-old former Sangamon County deputy was convicted of second-degree murder in October for fatally shooting Massey, a 36-year-old Black woman, inside her Springfield-area home in July 2024. He received the maximum 20-year sentence in January.

The case became a national flashpoint over police use of force and accountability after body camera footage showed Massey crouching behind her kitchen counter and apologizing moments before Grayson shot her in the face.

Sean Grayson Had Sought Medical Release From Prison

Grayson had been diagnosed with colon cancer before Massey’s killing. His attorneys said during sentencing that the cancer later spread to his liver and lungs.

Only months after beginning his sentence, Grayson sought medical release under an Illinois law allowing some incarcerated people with terminal illnesses or serious medical conditions to seek early release.

The Illinois Prisoner Review Board denied that request in July.

His death came less than a month after that decision.

Sonya Massey Called 911 for Help Before She Was Shot

Massey called 911 early July 6, 2024, after becoming concerned that someone was prowling outside her home.

Grayson and fellow Sangamon County Deputy Dawson Farley responded.

Body camera footage showed Grayson telling Massey to remove a pot of hot water from the stove. While holding the pot, Massey told the deputies, “I rebuke you in the name of Jesus.”

Grayson then threatened to shoot her, drew his handgun and ordered her to drop the pot. Massey apologized and ducked behind the kitchen counter before Grayson fired three times.

Farley later testified that he did not consider Massey a threat and only drew his own weapon after Grayson pulled his.

Grayson was fired following the shooting and initially charged with first-degree murder. Jurors ultimately convicted him of the lesser offense of second-degree murder after Grayson argued that he believed Massey might throw the hot water at him.

Massey’s Killing Led to Changes in Illinois Policing

Massey’s death sparked protests across the country and renewed questions about police hiring practices after reports detailed Grayson’s movement through multiple law enforcement agencies before he joined the Sangamon County Sheriff’s Office.

Illinois lawmakers later passed the Sonya Massey Act, which requires law enforcement agencies to more closely examine applicants’ previous employment records before hiring them.

The U.S. Justice Department also opened a civil rights investigation following Massey’s killing and later reached an agreement with Sangamon County, the sheriff’s office and the county’s central dispatch system.

Under the agreement, agencies were required to review policing policies and provide additional training for interactions with people with behavioral health disabilities. The agreement also called for the development of a mobile crisis response program staffed in part by trained behavioral health professionals.

Grayson’s death closes the prison chapter of a case that had already reshaped policing policy in Illinois, but Massey’s killing continues to carry broader significance in the national debate over police accountability and how law enforcement responds when residents call authorities seeking help.

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