In 1990, Jim Oliver, from the Illinois Department of Conservation, presented a program about John Root and the assassination of Erik Jansson. This 1 hour 24 minute presentation was part of the Bishop Hill Heritage Association Lecture Series. The YouTube video of this program can be seen on the bottom of the History page of this website or by clicking on the following link: https://www.youtube.com/watch?v=t4Bu9d1fp3I. It is copyrighted by the BHHA.