I hate to say this but we all need to take extra caution while out riding, this is not the first time this has happened and it seems to be growing, last month a rider was shot in the Palm Springs area.
I fight with these guys ( anti access/OHV ) every day and I'll tell you, they are ready to do some jacked up stuff, myself and one other guy have had our lives and families threatened simply because we worked to oppose two county Ords., one was settled and was pretty balanced and they weren't real happy about it, the second one they got what they asked for and we filed suit, that pissed them off.
In this case there is talk that Donna Olsen is the same Donna Olsen that runs Tri-City Ecology Center, in the case were we had our lives threatened, the guy has close ties with the Center for Bio-Diversity.
I don't mean to scare anybody, but be alert, I see a trend forming here in Ca.