There was a Mrs. Louise Fehrmann (& Chas. Fehrmann suicide) who was murdered in 1894. I've indexed articles about the incident and one about her burial in "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950) -- but there's no doubt the English language press covered the story.
I've also indexed family death notices in the German press for a Christina Fehrmann, and a Bertha Fehrmann Winkelmann.
gary.rebholz@gmail.com"Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950)