Gunman dead after opening fire near White House checkpoint, Secret Service says
A gunman armed with a pistol opened fire near the White House Saturday before being shot by U.S. Secret Service agents, officials said. He later died at a local hospital.

TL;DR
- Nasire Best, 21, of Maryland, was identified as the gunman.
- The suspect approached a Secret Service checkpoint and began firing a pistol.
- Secret Service agents fatally shot the gunman.
- The White House was placed on lockdown.
- An adult bystander was shot and their condition is unknown.
- The suspect had prior encounters with the Secret Service and a history of mental health issues.
- President Trump was at the White House during the incident but was not affected.