Mysterious dark helicopters circle Los Angeles and land on downtown LA rooftops (videos)

Mysterious dark helicopters fly over LA. Picture: Scott Lowe via The Drive

A trio of mysterious gray Bell 407 helicopters equipped with unique antennas, which may belong to an especially secretive U.S. military aviation unit, was up in the skies again over greater Los Angeles yesterday. During their most recent flights, two of them landed multiple times on rooftops in downtown L.A.