Breaking facts: A man was struck and killed by a Metro train at Potomac Yard after being chased, authorities say. This 1:20 (9:16) clip summarizes what we know now — timeline, witness reports, and police response as WMATA and local law enforcement investigate. No names released; tracks temporarily closed and service impacted in the area. We’ll update as official details come in and footage is reviewed. Watch for key timestamps and safety reminders near rail lines. If this update helped, please l