A northern Wisconsin girl charged with killing her mother and step-father will stay in jail in Indiana for at least another eight days. Ashlee Martinson was supposed to have an extradition hearing today in Boone County, north of Indianapolis. According to the sheriff's department, a defense lawyer asked that the proceeding be delayed -- so it's now set for a week from tomorrow. The 17-year-old Martinson and her 22-year-old boyfriend were arrested March 8th in Boone County, as they were reportedly fleeing from the murder scene. Authorities said Martinson shot-and-killed 37-year-old Thomas Ayres and stabbed her 40-year-old mother Jennifer Ayers to death at their home near Three Lakes. Officials said Martinson then locked her three younger sisters in a bedroom before she and the boyfriend took off.