Who is Viktor Bout, the Russian “Merchant of Death”?

Read MoreThe Russian arms dealer has been released from U.S. prison in a one-for-one swap to free WNBA star Brittney Griner, a U.S. official confirmed.The Russian arms dealer has been released from U.S. prison in a one-for-one swap to free WNBA star Brittney Griner, a U.S. official confirmed.