Feds to investigate mysterious teen gym mat death

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Nashville shooter messaged former teammate prior to attack
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California bill to allow accents on important documents
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Dozens killed in migrant center fire on U.S.-Mexico border
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Residents in Mississippi and Alabama displaced after deadly tornado
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Police say Nashville school shooter bought 7 guns legally
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Full bodycam: Nashville police encounter school shooter
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UP NEXT
Nashville shooter messaged former teammate prior to attack
02:55
Police officer killed, second wounded in Alabama shooting
02:11
Talks between Biden and McCarthy stall as debt ceiling deadline looms
02:07
Bankman-Fried allegedly bribed Chinese official with $40 million
02:24
Regulation at center of Senate committee debate over bank failures
02:47
Paltrow's legal team brings in engineer to substantiate actor's ski collision claims
04:08