Three people, including the shooter, were pronounced dead at the scene in Austin, Texas, the police said.

Elon Musk during President Trump’s inauguration parade held last month inside Capital One Arena in Washington. Mr. Musk’s political activities and reduced presence at Tesla are stirring dissatisfaction within the company.

When you see the men on the subway or hurrying down a Midtown street, they look like average busy New Yorkers. Onstage, it’s clear they are stars.