On "LA Times Today": The mayor's firing of the fire chief — was it an act of leadership or desperation? And how it may have changed the political landscape of this Los Angeles.

Plus, tiny pieces of plastic are in our bodies — and now in our brains. We look at how it's raising red flags about dementia.

And finally, it's LA's most infamous unsolved murder: the gruesome case of the Black Dahlia and the wild theories that still persist to this day.