A 31-year-old Towamencin Township woman who allegedly fled the scene on route-309 after hitting two teens and killing one in late April, has waived her preliminary hearing. Sarah Derstein is charged with homicide by vehicle in the death of 15-year-old, Dennis Kee. Deshawn Page, also 15, was injured. According to police, Derstein was drunk, and reading a text while driving when she hit Kee and Page on the night of April 26th . Derstein faces formal arraignment on July 17th.