A little late to the party here, but as I work for a radio station (no, not Live 105) I may have some insight.
Writing and complaing to the station is fine, but a letter is 100 times better than an e-mail. A letter has to be kept in the public file, an FCC mandated bunch of stuff. This file is available to anyone who walks into the station during business hours to inspect. When a group challenges the license renewal of a station they look here. A whole bunch of angry letters is ammo for the challenge. This should deeply concern station management. Angry phone calls get nothing except reassuring management that people are listening, which is good for them. Whether e-mails must be kept in the public file is apparently open to interpretation.
Call and write all of the businesses that advertise on Live 105 and send a copy the station's general manager. Explain that they support a station that has advocated killing or injuring you, and that they have not apologized. Ask that they consider moving their dollars to other radio stations (I hope) or other advertising media (not so good for me...). You gotta hit them in the pocketbook, or they don't really care. That any motorcycle shop would ever advertise again on Live 105 with the current morning show is beyond me. When someone stabs you in the back and you don't at least walk away, be ready for another plunge. They did get a bunch of media coverage from it, so unless it really hurts somehow, it will have been all good for them. No bad publicity, right?
I was at KSJO during the last incident. KSJO ran a pro-motorcycle PSA at least once a day for a month after they (Kramer and Twitch) did the same thing. It didn't get them fired (sucking did, though), but it wasn't a happy time.
On the one hand it could be that Live 105's public face looks apathetic while inside the building things are, uh, tense. But until the public face shows some pain, I wouldn't be happy either. As a radio guy it usually hurts to see someone in our radio family lose their job publicly. But not always.