>Friday
In Germanic mythology, Frigg (/frɪɡ/;[1] Old Norse), Frija (Old High German), Frea (Langobardic), and Frige (Old English) is a goddess. In nearly all sources, she is described as the wife of the god Odin. In Old High German and Old Norse sources, she is also connected with the goddess Fulla. The English weekday name Friday (etymologically Old English "Frīge's day") bears her name.
Bear in mind that the NZ shooter made a reference to valhalla in his manifesto.
In Norse mythology, Valhalla (/vɑːlˈhɑːlɑː/;[1] from Old Norse Valhöll "hall of the slain")[2] is a majestic, enormous hall located in Asgard, ruled over by the god Odin.