According to a report by Business Insider, a Russian political exile who had warned authorities he was on Vladimir Putin's personal hitlist has been found dead in London under unexplained circumstances. Multiple UK and Russian media outlets have reported that Nikolai Glushkov was found dead at his home in London. Reports of his death come amid a diplomatic rift between Moscow and London over the attempted assassination of double agent Sergei Skripal with a deadly nerve agent earlier this month.