Sketch Released Over NAACP Bomb in Colorado Cops think this man planted device By Newser Editors and Wire Services Posted Jan 10, 2015 10:59 AM CST 94 comments Comments Authorities have released this composite sketch of the man they believe detonated an explosive near the offices of the Colorado Springs chapter of the NAACP. (AP Photo/FBI) (Newser) – Authorities have released a composite sketch of the man they believe detonated an explosive near the offices of the Colorado Springs chapter of the NAACP. The FBI and Bureau of Alcohol, Tobacco and Firearms also offered a $10,000 reward for information on Tuesday's explosion, which caused only minor damage and no injuries but rattled nerves. Federal officials say they do not know whether the NAACP was targeted but are investigating the explosion as a possible hate crime. FBI Special Agent in Charge Thomas Ravenelle said authorities drew the sketch of a bald white man with sunglasses based on accounts of witnesses who saw him place a device behind the building that houses the NAACP and a black-owned barbershop. The man returned to his truck and left as the device detonated. The crude device failed to ignite a canister of gasoline placed next to it, but Ravenelle said even if it had succeeded it probably would have only caused minor damage.