WATCH: Trump Presents Six Dayton, Ohio, Police Officers With Medal of Valor for Stopping Mass Shooter; Awards Five El Paso Civilians With Certificates of Commendation for Bravely Helping Others During Mass Shooting

It took just 20 seconds for police officers in Dayton, Ohio, to begin firing at a gunman one morning last month, taking him down after he killed nine people and wounded 27 others in the city’s entertainment district.