PROVO, Utah (Reuters) -The trade school student suspected of assassinating right-wing political activist Charlie Kirk at a Utah university was due in court on Tuesday to face formal charges, appearing by video feed from jail for his first public appearance since the shooting. The killing, captured in graphic video clips that went viral on the internet, sparked denunciations of political violence across the ideological spectrum but also unleashed a wave of partisan blame-casting and concerns that Kirk's murder might beget more bloodshed. Authorities have offered no possible motive for the killing, though Kirk's wife and other supporters were quick to...