Luka Binniyat is set to stand trial before a Nigerian magistrate on Sept. 6.
Eleven of the new students at Sacred Heart were wounded in the shooting. Their former school is less than a mile and a half away.
The persecution of the Catholic Church in Nicaragua has been increasing for years.
Cardinal Ouellet is accused by a woman who says that he assaulted her multiple times while she worked as a pastoral intern for the Quebec archdiocese between 2008 and 2010.