For those of you wondering what happened to Isla Vista after the burning of the bank, Christina A. Ziegler-McPherson wrote a history of the Isla Vista Parks and Recreation District (1972-1998) which she gave the IVRPD in 1998.
During the 1970's, IV politics was split between the IVCC/IVMAC and the IVRPD. In the 1980's, the IVRPD became the defacto government in Isla Vista. What happened in the 1990's is also documented in this work. While the author's work is primarily taken from written reports of what occurred and very little primary source information was gathered, I recommend reading it:
Isla Vista Recreation and Park District History