MEMPHIS, Tenn. (AP) - A 17-year-old boy charged with fatally stabbing his high school principal is scheduled to appear before a judge.

Eduardo Marmolejo has a court hearing scheduled for Tuesday in Shelby County Criminal Court.

Marmolejo has pleaded not guilty to adult first-degree murder charges in the stabbing of Suzette York in August 2011. The 49-year-old York was Marmolejo's principal at Memphis Junior Academy, a private school affiliated with the Seventh-day Adventist Church.

Marmolejo was 16 at the time of the killing. He has been found competent to stand trial but no trial date has been set.

Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.