Aaron Katersky reports on the confessional video the shooter who opened fire at Brown University and then traveled to Massachusetts to murder an MIT professor left before killing himself at a New Hampshire storage facility, federal investigators said; Rachel Scott has the latest on what sources tell ABC News about the U.S. issuing a list of demands to Venezuela that the regime must meet before allowing the country to sell more oil; after holiday gatherings and travel, Stephanie Ramos has details on the record-breaking surge in flu cases with CDC estimating at least 11 million illnesses from flu so far this season; and more on tonight’s broadcast of World News Tonight with David Muir.

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