Crime scene investigators, forensic experts and a police policy expert testified Thursday in the murder trial against Sean Grayson. See what happened.

Massey was killed in her home in Springfield, Illinois, last year after she called authorities over concerns about a prowler.

An expert on police use of force testified Friday in the murder trial of former Sangamon County sheriff's deputy Sean Grayson in the shooting death of Sonya Massey.

On day three of Sean Grayson’s murder trial, a policing expert testified that the former Illinois deputy escalated the encounter with Sonya Massey, saying she held only a pot of water and posed no real threat before he opened fire.

A prosecutor says an Illinois sheriff's deputy had no legal justification when he shot Sonya Massey in her home in July 2024 after the Black woman called 911 for help.

Sonya Massey could've survived. That was the testimony from the forensic pathologist who performed Massey's autopsy.

Fatal shooting of Sonya Massey by Sangamon County Sheriff’s Deputy Sean Grayson in 2024 stirred national outrage.

"He did not follow his training. He did not follow police principles," the Sangamon County state's attorney said.

The second day of testimony is underway in the trial of ex-sheriff’s deputy Sean Grayson, who faces murder charges for fatally shooting a Black woman in her Illinois home after she called 911 for help.