Hunter Biden referred to Massimov in a 2016 email as a "close friend." Former Kazakh Prime Minister Karim Massimov, a known Biden family business associate, was detained Saturday on suspicion of treason, according to an announcement from the Kazakhstan National Security Committee, a body he chaired until this past week. Local media report at least 164 people have died as a result of riots that broke out Jan. 2 following an increase in fuel prices. An unverified photo shows then-Vice President Joe Biden and his son Hunter Biden flanked by then-Prime Minister Massimov and Kazakh oligarch Kenes Rakishev in the...