PIKETON, Ohio — Six months after someone shot eight members of an extended family to death in their homes, surviving relatives are still waiting — for an explanation, for an arrest, for a hint of closure."I just want to know why?" said Tajianna Mead, of Waverly, whose 44-year-old father, Kenneth Rhoden, was among the victims.When the slayings were discovered the morning of April 22, rural Pike County in the Appalachian foothills of southern Ohio was coming to life with the colors of greening hardwoods and the white petals of dogwood trees. Half a year later, colors are changing again as leaves turn to burnt yellow and red across the thickly wooded hills.Pike County Sheriff Charles Reader told WCPO-TV this week that he now believes the killers were local .Union Hill Road, where seven of the victims were found on three properties, is open again to traffic. "Private Property: No Trespassing" signs are posted at the end of the homes' driveways.