It was one of the biggest revelations about corruption since Ukraine’s EuroMaidan Revolution ended Viktor Yanukovych’s presidency in 2014.

On Feb. 25, Nashi Groshi investigative journalists revealed that the son of Oleh Hladkovskiy, deputy head of Ukraine’s Security and Defense Council and a top ally of President Petro Poroshenko, allegedly played a leading role in a scheme that embezzled millions of dollars from state defense enterprises.

The investigation exposed a small group of well-connected young men who journalists say were smuggling used parts for military equipment from Russia and selling them to Ukrainian defense companies at inflated prices.