Sen. John Kennedy hilariously cross-examined a democrat witness that knew nothing about CO2. KNOW IT ALL: 1) Leadership shakeup at Boeing. 2) What Boeing's CEO stepping down means for the future of the company. 3) Shootings involving teen boys were related incidents. 4) Terror attack in Moscow. // Bryan highlights a new Netflix series that dramatizes Chinese struggle sessions from the Cultural Revolution. // Bryan plays the 9-1-1 call from the cougar attack last month. There's an elaborate scam involving gold bars and couriers in Maryland.