Helicopter crash left a Siemens executive, his family and their pilot dead. Here’s what we know

A sightseeing helicopter plunged from the sky into the Hudson River on Thursday, turning a family outing above Manhattan’s misty skyline into a tragedy.

​ A sightseeing helicopter plunged from the sky into the Hudson River on Thursday, turning a family outing above Manhattan’s misty skyline into a tragedy. Read More Breaking News, Latest News and Videos | CNN