By Rachel Hagan Around 100 Alexei Navalny mourners in Russia have been arrested by brutal Kremlin forces, just hours after his reported death. President Vladimir Putin’s most vocal critic, who was serving 19 years on extremism charges that were widely seen as politically motivated and bogus, died in an Arctic Circle jail today, according to the prison service. According to the Russian human rights group OVD-info, around 100 detentions have occurred in eight cities, including RusNews reporter, Elina Kozich. People were filmed being grabbed by officers and put in the back of vans in St Petersbur…