Complex sentence: In 1982, he hitchhiked to the San Francisco Bay Area for a juggling convention, and stayed, where he co-founded San Francisco's grassroots performance art coalition "848 Community Space" in his living room, which later became CounterPULSE.
Split into simpler sentences: In 1982, he hitchhiked to the San Francisco Bay Area for a juggling convention, and stayed. In his San Francisco living room he co-founded the grassroots performance art coalition "848 Community Space," which later became CounterPULSE.