Keyes, 17, was struck by a car and then beaten in November 2009.
Lacorbek Benion is charged with first-degree murder in Keyes' death. On Tuesday, his bond was lowered from $3 million to $250,000.
Benion's mother, Timera Branch, also faces first-degree murder charges in the case. She is accused of intentionally driving the car into Keyes, which crushed his body into a building.
Benion allegedly beat him with a baseball bat while he was pinned by the car.
Should Benion post bond, he will be on electronic home monitoring.