EL RENO, Okla. (AP)-- As if they were signing a cast or a yearbook, Tremain Richey's classmates wrote messages to the slain 10-year-old on posterboard outside his home.
Stuffed animals decorate the chain-link fence as a memorial to Tremain, shown on the poster in his football uniform.
"You're in the Big 12 now," one child wrote, referring to the college football conference.
"We'll miss you," says another.
Residents in this working-class community of 15,000 are grappling with Tremain's shooting death -- especially the possibility that a 10-year-old playmate may have been responsible. The friend, who lived a few blocks away, was arrested and jailed on a murder complaint.
"They were practically raised together," said Tremain's mother, Tiffany Gillispie. "They always played well, they never got in fights. They always spent the night together."
Police said they don't think Monday's shooting was an accident, but they have not established a motive.
Gillispie said that when she got home from work Monday, her son, who was supposed to be looking after his 5-year-old sister, was not there. The girl told her mother she didn't know where Tremain was, and the two went driving around to look for him.
It was then that the girl told her mother Tremain had been shot.
They returned home and Gillispie found her son lying dead in the yard near the back of the house.
It is unclear if the 5-year-old witnessed the shooting, though she was home at the time. Police said there was a juvenile witness, but didn't say whether it was the victim's sister.
Police said they found the gun believed to have used in the shooting at a home nearby.
The boy has not been charged and his name has not been released.
Tremain's family describes the shooting victim as a quiet child who excelled at sports and school.
Brainerd Dispatch ©2013. All Rights Reserved.