Turkish officials have identified one of the two suicide bombers who targeted a peace rally in the capital Ankara, killing 102 people. Turkish media said his brother died as a suicide bomber in a previous attack. In a statement released late Monday, the Ankara Chief Prosecutors office identified the bomber involved in the Oct. 10 attacks as Yunus Emre Alagoz. Authorities were still trying to identify the second attacker. Turkish media reports say Alagoz's brother blew himself up in a town near the border with Syria in July, killing 33 people. The two brothers reportedly belonged to a Turkish cell of the Islamic State group. The prosecutor's statement said authorities have seized arms, hand grenades and large amounts of ammonium nitrate and other materials used to make bombs.