Key Facts

• The attack happened at the Washington Hilton during the annual White House Correspondents' Dinner.
• About 2,500 people attended, including President Trump and top officials.
• The suspect, Cole Thomas Allen, was armed with guns and knives and was arrested.
• One Secret Service agent was wounded but has recovered and left the hospital.
• Security procedures are being questioned, as some guests, including analysts, said identification checks were weak.
• The suspect used stairwells inside the hotel to avoid heavily monitored areas.
• The FBI is investigating the incident, and Allen will appear in federal court.
• Secret Service praised for stopping the suspect quickly but some experts say response time could be improved.