Eric Westervelt

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Now here's a story of saving lives. It was part of Tuesday's mass shooting in northern California. Teachers, a janitor and others at a school kept it from being worse. Here's NPR's Eric Westervelt.

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Public defenders in Baltimore say hundreds of criminal cases could be tossed out after two incidents discovered on police body cameras this summer show officers allegedly planting drug evidence.

So far some 40 criminal cases have been dropped, mostly involving drug and weapons-related felonies.

But lawyers there say that's just the beginning.

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