Many listeners couldn’t get Katy Perry’s hit “Dark Horse” out of their heads — that may have been because they had heard it before Source

Deadly shooting at festival in California; CBS blacked out by AT&T on DIRECTV. Source

Investigators search for motive in deadly California festival shooting; Farmers harvest crop for neighbor battling stage 4 cancer. Source

Beijing officials spoke out about the growing unrest in Hong Kong for the first time at a press conference on Monday. The territory has been plagued by a political crisis for the past two months. Georgetown University professor Matthew Kroenig joins CBSN to discuss the conflict. Source

Police say they have located the car belonging to the gunman in the mass shooting at a California food festival, but have not yet figured out a motive. Jamie Yuccas joins CBSN with the latest. Source

Three people were killed and more than a dozen injured, after a gunman opened fire at the Gilroy Garlic Festival in California. The gunman was killed by police and now they’re seeking to question a second person in connection with the shooting. Jamie Yuccas reports. Source

The hacker got information including credit scores and balances plus the Social Security numbers of about 140,000 customers Source

Pres. Trump going after Rep. Elijah Cummings; Steve Bullock on his first presidential debate. Source

Scientists revealed an asteroid dubbed by some as a “city killer” came closer to the Earth than the moon this week Source

Despite anonymous mother’s viral tirade, the Magic Kingdom has been courting millennials for years—starting with booze Source