"Bloghead" from Singapore said:

I watch the show From Hell the other day. First time actually watch it. Basically, I know some part were exagerated but I almost believe about the grapes. Next time, I'll watch Discovery or National Geographic.

It would explain the lack of sound from the victims. One author took a piece of calico, the same material of the apron left beneath the Goulston Street Graffito, and tore it in the middle of the night. People came out to see what the noise was. So even back then, someone should have heard either the apron being ripped (or it was cut with a very sharp knife to avoid sound) or the screams of the victims. As violent and lawless as the times were, murder was relatively rare in London, no matter what some might attempt to say about the Victorian Era. So screams would have attracted some attention. Still, since no autopsy report confirmed the presence of grapes, we cannot assume the killer used this method to silence his victims before mutilating them. More likely is either the quick slash across the throat or strangulation.