Windows appear to be shattered at the Allina Health clinic in Buffalo, Minnesota, where a shooting occurred Tuesday morning. BUFFALO, Minn. (FOX 9) - A Wright County Sheriff's deputy investigating Gregory Ulrich, the man charged in the deadly Allina Health clinic shooting, believes Ulrich's dependency on pain medication was the "driving force" in the incident, according to search warrant applications filed in the case.One woman died and four others were injured on Feb.