More than 300 tips have poured in to authorities searching for a 15-year-old girl who went missing last week in Conway, an FBI official said Monday night. Kieran Ramsey, an FBI special agent, said tips have come from as far away as Texas in the search for Abigail Hernandez. Also Monday, Hernandez’s sister appealed for Abigail to come home and for anyone who may know where she is to keep her safe. Abigail was last seen about 2:30 p.m. Wednesday near Kennett High School, the FBI has said. Anyone with information on her whereabouts is urged to contact the FBI or Conway police.