"'When will you stop cursing Putin? He'll kill you for that.' She was completely serious," Nemstov told Sobsesdnik earlier this month, according to the Wall Street Journal. The paper added that the former Deputy Prime Minister under Russian president Boris Yeltsin expressed some worry about his safety but not as much as his mother.
The Boston Globe reported that Nemstov also told the magazine in reference to his 86-year-old mom, "She is truly scared that he (Putin) could kill me soon for all of my statements, both in real life and on social networks. This is not a joke; she is a smart person."
During the chat with the magazine, Nemstov said that if he were really very fearful he probably wouldn't have led an opposition party.
Nemtsov, 55, was gunned down in a drive-by shooting Friday near midnight as he walked on a bridge near the Kremlin with a female companion.
Full story from Fox News: http://www.foxnews.com/world/2015/02/28/russian-investigators-fail-to-mention-nemtsov-was-top-putin-critic/