MOSCOW — 1000’s of mourners standing behind steel police boundaries applauded and chanted Alexei Navalny’s identify because the physique of President Vladimir Putin’s most formidable critic arrived at a church for his farewell ceremony. With busloads of riot police and safety vehicles on the website, rights teams have warned mourners of doable arrests and interference. Navalny died instantly on the age of 47 within the Polar Wolf jail colony in northern Russia — a loss of life that his widow, Yulia Navalnaya, and different supporters have described as “homicide” however which Russian authorities reported as as a result of “pure causes.”