The Flash Briefing is a daily news update every weekday morning from Todd Jeffries. 

• Mexican security forces have killed the leader of the Jalisco New Generation Cartel in a major military operation with assistance from the U.S. 
• An armed 21-year-old man was shot and killed by the Secret Service after breaching the perimeter of President Trump's Florida estate 
• An off-duty Austin police officer is being hailed as a hero following a shooting at a barbershop in Pflugerville on Friday night