Candles are left in tribute to murdered Slovakian investigative reporter Jan Kuciak, 27, and his fiancee Martina, 27, at Slovak National Uprising Squa

Candles are left in tribute to murdered Slovakian investigative reporter Jan Kuciak, 27, and his fiancee Martina, 27, at Slovak National Uprising Square in Bratislava, on Tuesday, Feb. 27, 2018 (Jakub Kotian/TASR via AP)

Candles are left in tribute to murdered Slovakian investigative reporter Jan Kuciak, 27, and his fiancee Martina, 27, at Slovak National Uprising Square in Bratislava, on Tuesday, Feb. 27, 2018 (Jakub Kotian/TASR via AP)