NTSB: 4 killed when helicopter crashed on Md. highway were returning from charity event

HAGERSTOWN, Md. — One of four people killed when a helicopter crashed on a Maryland highway told his son he was delaying his flight home because of foul weather.

Helicopter crashes on Md. highway, killing 3 flight instruction company workers, passenger

SMITHSBURG, Md. — A helicopter crashed onto a western Maryland interstate highway and burst into flames, killing three employees of a flight instruction company and a passenger, the company said Friday.