Investigators in the Gilgo Beach murder case find a flood of new evidence including a vault containing over 200 guns. But why did it take more than a decade to put it all together? Local reporters and CNN’s John Miller tell Alisyn Camerota why. Plus, how Donald Trump and his allies plan to completely reshape the power of the presidency if he is reelected in 2024. And, how long can humans live in 125 degree temperatures? With 80 million Americans under heat alerts, CNN's Bill Weir explains what our leaders should do now.

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