I-580 shootout suspect facing 3rd 'strike'
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/07/20/BAJJ1EGJSC.DTL
Apparently the guy got hit multiple times and survived because of the body armor. I don't think he was allowed to own a firearm as a parolee, but reports are that he had access to his mother's guns, which she said were a preparation just in case they got "caught up in a revolution". He was also targeting left-wing interests such as the ACLU.
Now - I personally remember the 101 California building shooting in San Francisco in the early 90s. It sounds to me as if he was intent on carrying out something similar, with the addition of body armor.