What's Up: Updates in San Diego for Morning of Dec. 4, 2021

A judge imposed a combined $1 million bond for the parents of the Michigan teen charged with killing four students at Oxford High School, hours after police said they were caught hiding in a Detroit commercial building. Also, students at La Costa Canyon High School in the North County were told not to attend school after a hitlist was discovered and threats were made. And, the FDA has approved a monoclonal antibody treatment for infants and children under 12.