Former Ukrainian politician Andriy Portnov, who worked as a senior aide to pro-Russian former President Viktor Yanukovych, has been shot dead outside his children’s school near the Spanish capital Madrid,

Spanish authorities say an adviser to former Ukrainian President Viktor Yanukovych was killed outside the American School of Madrid.

Lawyer. “Court fixer.” Critic of the Maidan protests. Who exactly was Andriy Portnov, the Ukrainian political operative who was gunned down in a Madrid suburb?