RIVERHEAD - A retrial began today for a woman who was convicted of murdering one of her classmates at Riverhead High School more than 16 years ago. Kalila Taylor was already convicted of murdering 17-year-old Curtisha Morning back in 1996. Morning's body was found stabbed nearly 100 times on the school's grounds. A judge ordered a retrial in the case, saying the original trial judge gave improper instructions to jurors.Murder retrial set to begin in Riverhead