The suspect was accused of deteriorating the country's unity and integrity and torturing an individual to death.
A total of 27 suspects, including five children, have been detained over the gruesome killings.
The perpetrators were alleged supporters of the outlawed Kurdish Workers’ Party, who took to the streets after a call by the pro-Kurdish Peoples’ Democratic Party.
Protests erupted after the Syrian town of Kobani came under attack by Islamic State of Iraq and the Levant militants. It was alleged that the government was not doing enough to help the mostly-Kurdish population there.
On Oct. 5, the slain youngsters were chased down and brutally killed on the second day of Eid al-Adha as they distributed food aid to Syrian refugees.
Attackers, reportedly armed with machetes and guns, killed and mutilated the bodies of Yasin Boru,16, Hakan Gokgoz, 26, Huseyin Dakak,19, and Riyad Gunes, 28.