Maryland State Police's Aviation Command shared a dramatic video of the rescue of an injured hiker.Just after 11:00 a.m. on ...

WASHINGTON (CNN)-- Two Maryland State Police personnel, a medical technician and a teenager were killed when a medical evacuation helicopter crashed Sunday in suburban Maryland, police said.

Officers from multiple jurisdictions joined in the pursuit, along with one of D.C.’s police helicopter ... Heights in Prince George’s County, Md., and Hosea Peterson, 39, of Southeast Washington.