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slash learn more. Senator Tom Cotton warns U.S. businesses not to get in the way of Donald Trump's China

tariff push. Plus, how Beijing is using Russia as a real-life case study to prepare for economic

warfare. Russia has found ways to dodge various penalties imposed by the West, and the goal is to have

a toolkit in case the West imposes similar penalties on China.

And a setback in Rupert Murdoch's bid to change who will control his media assets when he dies.

It's Tuesday, December 10th.

I'm Luke Vargas for the Wall Street Journal,

and here is the AM edition of What's News, the top headlines and business stories moving your

world today.

We begin in Manhattan, where prosecutors overnight charged 26-year-old Luigi Mangione with murder

in the killing of United Health Executive Brian Thompson.

Mangione, a former tech worker, was arraigned and denied bail yesterday in Pennsylvania

after being arrested and charged separately with a range of lesser offenses.

Pennsylvania Governor Josh Shapiro credited local law enforcement for apprehending Mangione,

and he challenged the folk hero status the suspect had earned among some members of the public

for striking a blow against America's health insurers.

The suspect here who shot at that CEO and killed that CEO is a coward, not a hero.

And we need to make sure that in this country, we get back to having a civil discourse about our differences.

A United Health spokesman said they hoped Mangione's arrest would bring some relief to Thompson's

...