"It's a very quiet neighborhood," Michael Conway told WFTV. "We never have these types of situations in Bay Tree."
Conway told WFTV the community is mostly made up of retirees and that he has never seen a violent crime in the neighborhood in the 17 years he's lived there.
Deputies said they were not sure what led to the stabbing.
Charges against the juvenile have not yet been filed, the Sheriff's Office said.