Friday desk-clearing

Lunchtime brawls at Locke High in South Los Angeles involved hundreds of students and led to four arrests, as well as a campus lockdown. Overwhelmed school officials called in the LAPD. LAT Also: Donna Foote, the author of "Relentless Pursuit" who spent a year at Locke, guests tomorrow on KPFK's "Deadline L.A." with Barbara Osborn and Howard Blume. Noon, 90.7 FM
Mayor Vilaraigosa discusses Rush Limbaugh's "shoeshine boy" remark and other issues Sunday on KNBC News Conference with Laurel Erickson, 9:30 am on Channel 4. District Attorney Steve Cooley and UTLA president A.J. Duffy are also on.
Vandals shot out the windows of at least 50 cars in Azusa early this morning. L.A. Now
If today's L.A. Times Column One about the artist who painted murals at San Quentin sounded familiar, it could be because a shorter version ran in the New York Times last August.
Reporter Lisa Napoli has left "Marketplace" to write her book on helping start a radio station in Bhutan, "Three Good Things: Or, What I Learned in the Happiest Place on Earth."
At the OC Register, it's not the Travel Editor (Gary Warner) who's leaving but Steve Plesa, whose title was Team Leader for Food and Travel-Features.
My weekly LA Observed commentary on KCRW airs at 4:44 pm. Today: a roundup of Hollywood economic news.