The Heath Robinson of pranks
"Swatters use a combination of social engineering, phone phreaking prowess and computer hacking... Trowbridge furthered the scheme by mining personal information about the victims from a host of sources, including consumer reporting agencies, pizza delivery records and newspaper subscription records"
All this just to make hoax 999 calls? The word 'loser' comes to mind, but only because it's woefully insufficient.
When he gets out of his prison I expect his next jape will be to construct an elaborate three-barreled cannon that can fire objects in quick succession over a range of a mile with sufficient accuracy to hit a target about two feet wide. He will then spend days hiking looking for a suitable place to fire the cannon that overlooks residential areas and has enough leafy cover to hide him and the cannon. He will then construct rounds for the cannon of the exact size, weight and density that when a burst of three hits someone's door, it will sound exactly like someone's knocked on it. The resident will then come to the door and find no-one there, because Jason "Super Genius" Trowbridge will be safely hidden a mile away in some bushes sniggering his little heart out.
It's like one of Something Awful's anarchist BBS postings.