Toronto's public safety is becoming increasingly shaky following a series of random violent attacks across the city, with multiple incidents involving transit riders or employees. In the most recent indicent, one woman was stabbed multiple times inside a streetcar. A look at the troublesome trend, and what Mayor John Tory says is behind it. Police in California are investigating the state's third mass shooting in three days, after a man allegedly shot and killed seven of his former co-workers at two mushroom farms in the city of Half Moon Bay. The details on the accused gunman, and the victims. After initially refusing, German Chancellor Olaf Scholz is reportedly now agreeing to send Leopard 2 tanks to Ukraine. What's behind the change of heart, what other countries are expected to follow suit, and what it could mean for Russia's war in Ukraine. The planet's core may have stopped spinning and might even have reversed its rotation, according to new research published in Nature Geoscience. What it means, and why you don't have to be alarmed. Plus, triumphant solo trek: Quebec cross-country skier Caroline Côté's record-breaking feat to the South Pole, and why the only part she wasn't prepared for was the hardest.