What We're Following This Morning

Accused Kalamazoo shooter to be charged: The Uber driver who went on a shooting rampage on Saturday night in Kalamazoo, Michigan, is expected to be arraigned today on murder charges. Jason Dalton, 45, is accused of killing six people. The motive for the shootings is unknown. Update: More here

David Cameron to make the case: The British prime minister will explain why his country should remain in the European Union days after he secured concessions from the bloc over the U.K.’s membership in it. An “in-out” referendum will be held in June. The “out” camp has some strong supporters, including Boris Johnson, the London mayor. Update: More here

A claim of responsibility for Syria attacks: ISIS says it was behind the deadly explosions Sunday in Homs and Damascus that killed at least 140 people. Also Sunday, John Kerry, the U.S. secretary of state, said he had reached a “provisional agreement” with Russia on a cease-fire in Syria.

Toll mounts from cyclone in Fiji: The death toll from Cyclone Winston stands at 21. Reuters adds that aid agencies are warning of a widespread health crisis in the low-lying areas where thousands of Fijians live in tin shacks.