4 Students Linked to School Cheating Scandal

In an e-mail to parents Thursday, Chapel Hill High Principal Jackie Ellis said officials believe students passed around copies of answers to at least one test that was obtained by using a copy of a master key passed down from student to student through the years.

"The information about it happening for a longer period of time has been forthcoming from the students who were caught in this instance," Knott said.

The student or students allegedly obtained the tests by entering teachers' offices after school, she said. They were captured on the school's surveillance cameras.

Chapel Hill police are not investigating the case, Lt. Kevin Gunter said, and will not be involved unless the school district makes a request.