The Texas student allegedly behind Friday’s massacre participated in a church dance just days before, according to a video.

The footage of 17-year-old Dimitrios Pagourtzis shows him wearing traditional Greek clothing as he dances with other members of his Greek Orthodox church.

TMZ, which obtained the video, said the dance was part of a larger Greek festival in a town about 30 minutes away from Santa Fe, Texas, where he went to school.

Pagourtzis was charged with multiple counts of capital murder after opening fire with a shotgun and a revolver at Santa Fe High School, killing 10 and injuring many others.