There is a large amount of information available on the 1992 Los Angeles riot-- films, government documents, books and articles. If you have access to a public or university library, searching 'Riots--California--Los Angeles' and limiting the search to things published after 1992 will bring up some excellent results. I'll include a list of some of the films and books I found using that search strategy, but I would encourage you to explore further, by examining the sources cited for some of the resources I'm listing.
Ong, Paul M
Losses in the Los Angeles civil unrest, April 29-May 1, 1992 : lists of the damaged properties and the L.A. riot/rebellion and Korean merchants / by Paul Ong and Suzanne Hee
Los Angeles, Calif. : Center for Pacific Rim Studies, University of California, Los Angeles, c1993
The L.A. riot and the economics of urban unrest / Denise DiPasquale, Edward L. Glaeser
Cambridge, MA : National Bureau of Economic Research, c1996
California. Legislature. Senate. Special Task Force on a New Los Angeles
New initiatives for a new Los Angeles : final report and recommendations / Senate Special Task Force on a New Los Angeles
Sacramento, CA : Senate Publications, 
Sa-i-gu [videorecording] = 4.29 / produced by Christine Choy, Elaine H. Kim, Dai Sil Kim-Gibson ; written, directed and narrated by Dai Sil Kim-Gibson ; co-directed by Christine Choy
San Francisco, CA : National Asian American Telecommunications Association, c1993
'Explores the embittering effect the Rodney King verdict and subsequent April 29, 1992 riot had on Korean American women shopkeepers who suffered more than half of the material losses in the conflict. Film underscores the shattering of their American dream while taking the media to task for playing up the "Korean-Black" aspect of the rioting.'