"He's proven his trust," Thompson said. "Corey deserves the credit. He follows the rules and regulations and appreciates the opportunity the court has given him."
Kean, formerly of 442 E. Washington St., was charged on Nov. 4, 1993, as an adult with criminal homicide and conspiracy in the Oct. 31 death of his uncle, Steven H. Kean, 41, of 733 Mickeys Inn Lane.
Steven Kean was killed at home by shotgun blasts fired by his son, Shawn S. Kean, 15, and by Corey Kean. The slaying was part of the boys' plan to take Steven Kean's car, kidnap a girl and flee to the wilderness.
But the plan was botched immediately after the slaying when Shawn Kean wrecked the getaway car. He then sprayed a neighbor's house with gunfire from an AK-47 assault rifle before committing suicide with the weapon.
Investigators said at the time that occult involvement may have influenced the boys' decision to commit the act on Halloween.
Kean's case was later transferred to juvenile court and Walker sentenced him to the ARC program, said his attorney, Blake Martin. He has been in the program since 1994.
During a review hearing Tuesday morning, Thompson and Franklin County Juvenile Probation Officer Gale Kendall testified that Kean has shown consistent progress at the rehabilitation center.
The teen received a perfect score on the math portion of the general equivalency diploma exam, he completed 120 hours in the program's culinary arts class, and he is obtaining college credits through programs on the Internet, according to testimony.
Kean also has overcome his low self-esteem and is recognized as a leader by other youths in the rehabilitation program, Thompson told the court.
"This is good to see," Walker said. "If he'd been a leader in the first place he probably wouldn't have gotten into the situation."
"The real test will be in the future when you're released from ARC and you'll be out on your own," Walker told Kean.
Joined after the hearing by his parents, Teresa and Paul, Kean said he's looking forward to taking college courses and wants to focus on computer science.
"I think it will help me grow even more than I have already," he said. "It will help me prepare for life after ARC."
Kean's parents said they're proud of their son and described him as more open and positive since he entered the rehabilitation program.