In February 2015 , in front of the Sacred Heart Cathedral in Sarajevo , while UDIK commemorated the anniversary of the Štrpci massacre , the group of hooligans attacked Edvin Kanka Ćudić . On that occasion , they said that activists must go to commemorate crimes in Banja Luka , alluding to the UDIK 's marking of crimes in Kravica in January 2015 . In May , near the UDIK 's office in Sarajevo , he was attacked with another UDIK activist . Just a few days later , a similar attack took place on the same site . Ambassador of the United States of America to B&H , Maureen Cormack , reacted and said that it was unacceptable to attack stones a human rights activist in Bosnia and Herzegovina . In October , in front of the Sacred Heart Cathedral in Sarajevo in Sarajevo , while UDIK commemorated the anniversary of the crimes in Kazani , one hooligan try to physically attack Edvin Kanka Ćudić . A police reacted , but did not prosecute
Štrpci massacre
Štrpci massacre
Edvin Kanka Cudic