2008 Greek riots
The 2008 Greek riots started on 6 December 2008 , when Alexandros Grigoropoulos , a 15-year-old Greek student , was killed by a special officer in Exarcheia district of central Athens . 
<triplet> 2008 Greek riots <subj> 6 December 2008 <obj> start time <triplet> Exarcheia <subj> Athens <obj> located in the administrative territorial entity