AM news: March, the workplace, another mad dad

Immigration: Nationwide, rallies for immigrants' rights continue to swell — there were 500,000 in Washington DC yesterday. But here in LA, we might have a bit of rally burnout, or maybe the threat of rain kept many at home; estimates for our downtown march are 2,000-5,000. Dave Bullock was there and tells his story on blogging.la (he also took great photos, including the one above).

The same old same old: The average age of city workers has been edging up — it's now 46. Apparently, people like the jobs, particularly baby boomers. The Mayor warns that the cost of employing these (qualified, trained, experienced) workers may push his budget toward the red; LA County Economic Development Corp Chief Jack Keyser warns of a looming brain drain when they begin to retire.

Work hazard: At the ConocoPhilips refinery in Wilmington yesterday, the roof of a storage tank collapsed on workers below. The roof fell more than 60 feet on men installing a new floor in the tank; one was killed and four others were injured. One is in serious condition.

No, not again: a third Korean father has killed his child and then himself. 5-year-old Iris Araa Lee was shot by her financially-strapped dad, who then turned the gun on himself. It's the third similar incident in the SoCal area in the last 2 weeks.