The Prime Minister of Greece is responsible for the riots.

Prime Minister of Greece Costas Karamanlis said that the riots, continued in several cities in the country for the third consecutive day, was organized by certain extremists, reported AFP. In teleobraschenii on events in Athens, Thessaloniki and other cities, Karamanlis has promised to end the unrest, which, he said, the authorities will do so in memory of the teenagers, whose deaths and led to massive acts of protest.
  The students and anarchists staged pogroms after the law enforcement officers shot and killed a 15-year-old (on other data, yunosche was 16 years old) Alexandros Grigoropolusa, attacked a police patrol. Teenager shot dead an officer arrested. On questioning he stated that opened fire after he saw that Grigoropolus met flash fire-bombs at police.
The death of teenager sparked outrage among anarchists, as well as students who took to the streets of Greek cities. Some members protesters staged pogroms, engaged in skirmishes with police. In Athens alone, the rioters attacked the 13 police departments. The total number affected by the unrest in Greece more than 40 people.
  Attacks on the Consulate of Greece took place in London and Berlin.