Officials confirm attacker 's identity through forensic testing . The suspect is a white male in his 20s with short hair and wearing a black baseball cap, according to the FBI. A Cold War dynamic in Turkish attack . Authorities have detained three people for questioning over the attack , semi-official media reports .
Officials confirm attacker 's identity through forensic testing . The suspect is a white male in his 20s with short hair and wearing a black baseball cap, according to the FBI. Authorities have detained three people for questioning over the attack , semi-official media reports .