09/02/2010 01:12 pm ET | Updated May 25, 2011

Kyree Davis, Eight-Year-Old Shot Dead, May Have Been Killed By Older Brother (VIDEO)

Authorities are continuing to investigate the shooting death of an eight-year-old boy in south suburban Dolton.

Kyree Davis's death was ruled a homicide by the Cook County medical examiner's office on Tuesday, and police and social workers are slowly putting together a picture of the events that led to his death.

Dolton police still don't suspect foul play in the boy's death. Instead, they suspect that Kyree's 11-year-old brother shot him accidentally. His brother was at home with him when he was shot; authorities believe the boys were playing with the gun when it accidentally discharged, the Sun-Times reports.

His brother ran for help to his neighbors' house, who called 911. A neighbor explained what happened to the Chicago Tribune:

Jordan Lewis, 13, said he was outside playing when he heard the commotion at Kyree's house. He was among a group of neighbors that stood outside watching as the boy was carried to the ambulance.

"I knew he didn't make it," he said. "The ambulance rolled off without the sirens on. And it was moving slow.

"I feel so bad. I miss him."

The Department of Children and Family Services is helping the police with the investigation. And social workers are on hand at the Harriet Tubman School, which Kyree attended and his 11-year-old brother currently attends.

Watch the ABC report on the shooting: