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?

Andriy Portnov's murder in a Madrid suburb may have been shocking, but it has not exactly triggered an outpouring of grief in Ukraine. The controversial former official had just dropped his children off at the American School when he was shot several times in the car park.

Former Ukrainian politician Andriy Portnov, who worked as a senior aide to pro-Russian former President Viktor Yanukovych, has been shot dead just outside the Spanish capital Madrid, a Spanish national police source told CNN.