SUMMARY: A Microsoft Outlook outage left millions without email; Microsoft said it was not caused by a cyberattack. Nvidia CEO Jensen Huang resigned amid alleged-spy reports, and interim CEO Colette Kress was named; Huang agreed to testify to Congress. A Brooklyn building collapse killed eight and injured 18; the cause remains undetermined. A Washington, D.C., shooting killed one and wounded four. Sen. Chris Van Hollen challenged Chuck Schumer for Democratic leadership. Other headlines include..