[6][7] On September 11, 1991, Ryan R Harris walked into a math class at Stevens High School in Rapid City, South Dakota, pulled out a sawed-off shotgun, and ordered the teacher to leave.

In this moment 17-year-old senior Chris Ericks picked up the shotgun and police swarmed in bringing the stand off to an end.

However 7 years later, Harris who was living in North Carolina and involved with a woman who was found shot and killed, engaged police in a 15 hour armed standoff in a convenience store after a traffic stop, ultimately turning his handgun on himself and committing suicide.

Stevens is among a handful of high schools anywhere possessing a large concert organ; a three-manual, 84-stop instrument in the Milo Winter Fine Arts Auditorium.

Its success stems from longtime director Bill Evans who started with a group of five players building it over 40 years to a full orchestra with 120 members.