Be flexible with your keywords. Expand on the word riot (synonyms) and try using keywords describing the instigation of the riot. For example: personal name or an event associated with the riot
Streaming video of almost 1,600 videos aired on PBS, including series such as NOVA, Nature, American Experience, etc.
Collection of video available online for the study of American history.
Streaming documentary films from a number of sources, including Bullfrog Films, Icarus Films, and the National Film Board of Canada. Many films in this collection focus on social and environmental issues.
Check the public library websites located in the city/county/state where the riot occurred. Public libraries and state archives often collect digital photographs, newspaper articles, interviews, and audio/video recordings covering historic events within their geographic area. Call or email the public library closest to the riot area for further information.