Residents of the rural southern Ohio community of Piketon are rattled by a rare major crime that took the lives of eight members of a tight-knit family known in the area as hard workers.

Authorities were still trying Saturday to find out who targeted the seven adults and teenage boy and why. Their bodies were found Friday at four different homes near Piketon, about 60 miles south of Columbus.

Kayla Hay said she got to know one of the victims, 37-year-old Dana Rhoden, when they both worked as nurse's aides at a nursing home. Hay said she was shocked and saddened when she heard Rhoden was among those killed. "I've never heard her say anything about being frightened or concerned about anything bad happening," said Hay, who described Rhoden as outgoing and friendly.

All of the victims were members of the Rhoden family. The others were identified as 40-year-old Christopher Rhoden Sr.; his 16-year-old son, Christopher Rhoden Jr.; 44-year-old Kenneth Rhoden; 38-year-old Gary Rhoden; 20-year-old Clarence "Frankie" Rhoden; 20-year-old Hannah Gilley; and 19-year-old Hanna Rhoden.

It appeared some of the family members were killed as they slept, including Hanna Rhoden, who was in bed with her newborn baby nearby, authorities said. The infant was 4- or 5-days old, authorities said. The infant, Hannah Gilley's 6-month-old baby, and one other small child were not hurt. Authorities said none of the injuries appeared self-inflicted. A search for the killer or killers continued Saturday, and investigators said they had interviewed more than 30 people.

Kendra Jordan, 20, said she often worked nights at a nursing home with Hanna Rhoden and described her as outgoing, funny and always smiling. "If you were having a bad day, she'd be the first one to come up to you to question you about what was going on," Jordan said. "She was amazing."

The exact timing of the shootings remains unclear. Authorities got the first 911 call shortly before 8 a.m. Friday; the second came several hours later from another location. Two of the crime scenes are within walking distance of each other along a sparsely populated, winding road that leads into wooded hills from a rural highway. The third residence is more than a mile away, and the fourth home is on a different road, at least a 10-minute drive away, said the investigation's leader, Benjamin Suver of the state Bureau of Criminal Investigations.

Authorities refused to discuss many details of the crime, including the search operations. Officials said a Cincinnati-area businessman put up a $25,000 reward for information leading to the capture and conviction of the killer or killers.