Check out this video from PigmanTV taking down a hog from a helicopter with a compound bow:
The video description states:
In this scene taken from Season 4 (2013) of Leupold’s Pigman: the Series, Pigman successfully takes the first ever confirmed kill with a compound bow from a helicopter on film. This episode, filmed in Texas, served as the feature event of Sportsman Channel’s Aporkalypse Next programming campaign.
This could be footage of the first ever compound bow kill from a helicopter.