Google research seems to indicate that 'geofarming' is not a clearly defined concept.
Unless he has been farming for many years, I suspect it was just a cover for gathering explosive materials in quantity. If the death count is now 80, then the proportional count for Norway, based on camparing populations is almost twice the count for our 9/11. They are already giving some help in Afghanistan. I wonder how this will impact their perspective re firearms, military training, Islamists, etc.