The court heard the brothers picked a "discreet" location for the scene of their first attack, in trees by a stream.

BBC: Young brothers admit boys' attack

The Associated Press examined the footage to verify its authenticity, cross-referencing images from the scene, aerial shots, the location of a car behind the alleged attacker and the appearance of a body and a car in the background.

NPR: UK Soldier Slaying Suspects Had Been Investigated

"The NYPD is securing the location as it would a crime scene, documenting it photographically, " the statement said.

CNN: NY police: Landing gear part found, is tied to 9/11