Updated

Authorities arrested a suspect Thursday in the death of a 12-year-old Illinois boy who investigators said was shot in his home as he did schoolwork.

Prosecutors charged Marcus Powell with first-degree murder in the drive-by shooting death of Delarrian Davis.

Capt. Brad Wells with the Madison County Sheriff's Department said Delarrian was minding his own business when he was killed early Tuesday at his home in Madison, Ill., just across the Mississippi River from St. Louis.

Investigators found pencils and notebook paper near his body, indicating he was working on homework. A neighbor said she saw a man drive up in a car in front the house, turn off the headlights and fire shots into the home.

Powell, 27, had eluded authorities wanting to question him about the shooting until he surfaced near this St. Louis suburb Thursday morning, officials said.

After a chase, Powell was found in a shed at a mobile home park, said resident Bruce Koelling, who saw the capture. He said about 45 officers converged on the shed, sent in a dog and the entered the shed with guns drawn. Koelling said he heard Powell yell, but it appeared he surrendered peacefully.

Several schools nearby either closed for the day or were placed on lockdown during the manhunt.