GREENWICH - Greenwich police say they have charged an 18-year-old high school student with making online threats against one of his teachers.    

Police say the teacher saw her name in a string of Facebook messages after confiscating Thomas Walker's phone because he was texting in class Tuesday afternoon.

Officers say the messages included notes about Walker's plans to "jump" the teacher and that she "needed to die."

Walker has been charged with breach of peach.