From The Heretic Knowledge Vault
Stevo is one of the Gewehr riff-raff who have been serving as the advance party for the Gewehr's planned expansion into Rinkaiel. When first encountered, he seems to spend most of his time asleep in the upstairs of the liquor store that serves as the Gewehr's "front" and safe house in town. However, when Layla and family come to town, and get (unwillingly and contrary to Layla's basic orders) dragged into the main Gewehr operation, he starts participating in the outfit's business. Admittedly, this is partly because the liquor store is firebombed by the sinister Seishi Torou, so that his hideout is uninhabitable, but anyway, he does join the fun, although he never seems to do much to help Layla and entourage.
Unfortunately, events reveal that he's on someone else's payroll besides the Gewehr's -- whose being something of an enigma, but whoever it is, Layla quite understandably takes exception to his divided loyalties. He is accordingly rubbed out while patronizing a brothel somewhere in Rinkaiel. The brothel itself is then blasted by powerful magic not of Layla's doing, in which Stevo would surely have perished if he hadn't already been dead. All indications are that he won't be particularly missed.