Andriy Portnov, a senior aide to former #Ukraine President Yanukovych, shot and killed by unidentified gunmen outside a school in a Madrid suburb

Accused of widespread corruption, Yanukovych fled office and went to Russia on February 21, 2014 amid the Maidan Revolution for rights and reforms

Police believe Portnov, who was driving a car, was shot at least three times by two or three attackers