Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Lit candles in a hearth shape in front of St Weceslas staue after the public gathering at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak and his fiancee Martina Kusnirova on occasion of their second death anniversary in Prague, Czech Republic, February 21, 2020. (CTK Photo/Libor Sojka)

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Lit candles in a hearth shape in front of St Weceslas staue after the public gathering at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak and his fiancee Martina Kusnirova on occasion of their second death anniversary in Prague, Czech Republic, February 21, 2020. At background there is National Museum old building. (CTK Photo/Libor Sojka)

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Lit candles in a hearth shape in front of St Weceslas staue after the public gathering at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak and his fiancee Martina Kusnirova on occasion of their second death anniversary in Prague, Czech Republic, February 21, 2020. At background there is National Museum old building. (CTK Photo/Libor Sojka)

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Candles at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak

Lit candles in a hearth shape in front of St Weceslas staue after the public gathering at Prague's Wenceslas Square commemorating murder of Slovak investigative journalist Jan Kuciak and his fiancee Martina Kusnirova on occasion of their second death anniversary in Prague, Czech Republic, February 21, 2020. At background there is National Museum old building. (CTK Photo/Libor Sojka)