In fact it is a symbolic reciprocal act as Estonia opened such cases against Russians who served in Estonia at that period of time.
It was a reason behind a travel ban for all Russian military and security personnel a few months ago.
They could have mentioned it in this article if it wasn’t just a piece of agitprop.
Are you talking about that - http://en.wikipedia.org/wiki/Arnold_Meri#Involvement_in_deportation_and_the_charge_of_genocide - right?
In August 2007, Estonian Western Circuit Prosecutors Office formally charged Arnold Meri with genocide, for his admitted role in organising the deportation of 251 Estonian civilians from the island of Hiiumaa to the Novosibirsk region of Siberia.
Organizing mass murder is a bit more than "serving".
Next time, simply type “waah” and save yourself the trouble.