Updated

Memphis authorities have charged a 17-year-old student with first-degree murder in the fatal stabbing of a Christian school principal on the third day of classes.

Memphis police said Eduardo Marmolejo stabbed 49-year-old Suzette York multiple times Wednesday at Memphis Junior Academy, a Seventh Day Adventist school of about 100 students. State law allows police to release of names of juveniles charged with first-degree murder.

Police said Marmolejo told investigators he planned to kill York because he did not like her and that she had made him angry. Police say Marmolejo told authorities he knew that he was going to be alone with York in a classroom, giving him the opportunity to kill her.

Online records do not indicate if he has a lawyer.