Jesse Jackson's half-brother was freed on $500,000 bond after being charged with hiring someone to attack a witness to a slaying, police said.

Noah Robinson, 45, was released Sunday night, a day after being arrested and charged with being an accessory to a felony, police said.

The original bond of $100,000 was raised to $500,000 Sunday when charges of obstruction of justice, intimidating a witness and criminal conspiracy were added against Robinson, Police Capt. W.L. Johnson said.

Johnson said the reason for the high bond was that Robinson gave police three addresses.

Robinson denied the charges when asked by reporters to comment while he was walking to his cell Sunday. "They're absolutely false," he said.