Google translate will get you Norwegian accounts of this.
I don’t expect there to be a one-to-one match. Brevik was older, better educated and more methodical. We should be glad Cruz wasn’t Brevik or the death toll would have been much higher. One thing interesting about Brevik was that he followed all the existing gun laws in Norway and still put together a “kit” that included a ANFO/Fuel oil bomb. Be glad the similarities were only superficial!