Authorities and residents in rural Ohio searched Saturday for two women and two children who have been missing for several days.
Blood was found in the Howard home of Tina Herrmann, 32, and her children Sarah Maynard, 13, and Kody Maynard, 10, Knox County Sheriff David Barber said Friday.
Herrmann's friend, Stephanie Sprang, 41, is also missing.
The sheriff described their disappearance as a missing persons case.
"Detectives are interviewing family members, friends and acquaintances," Barber told CNN affiliate WBNS on Saturday. "Right now, there is no indication that they were abducted."