• An arrest has been made in connection with an incident that led to a lockdown at Tamalpais High School in Mill Valley on Monday. There were reports of a teenager carrying an assault rifle, and Marin County authorities say they will be releasing more information later today. [KRON4]
• The Chipotle chain has been hit with a $1.3 million fine over child labor violations in Massachusetts. The violations included making kids under 18 work past midnight. [Associated Press]
• Three sisters in Oakland are implicated in an organized crime ring in which they stole and resold merchandise from a mall in Hayward, creating an outdoor boutique in their backyard. [KRON 4]
• The case of a 55-year-old former CHP officer in Solano County who sued his department for anti-gay bias and harassment has been revived by an appeals court. [Chronicle]
• It's the first day of car-free (but not taxi-free) Market Street! [ABC 7 / KTVU]
• The list of airlines suspending flights in and out of China amid the coronavirus outbreak is growing. [Associated Press]
• Soleil Ho says the Bon Appetit Test Kitchen on YouTube has a race problem. [Chronicle]
• Apparently these sheet cakes are being delivered to all Republican senators today telling them to let John Bolton testify in the impeachment trial. [Twitter]
• Former 49er Chris Doleman has died of brain cancer at age 58. [CBS SF]
• The helicopter that crashed in Calabasas killing Kobe Bryant and eight others was not equipped with a terrain awareness and warning system (TAWS), which is considered voluntary but recommended by the NTSB. [New York Times]

Photo: Josh Adams-Ford