Jurgen Gustav Kantner

In this undated image made from militant video and released by SITE Intel Group on Feb. 24, 2017, shows German hostage Jurgen Gustav Kantner at an undisclosed location. Abu Sayyaf extremists in the Philippines have released a video of the beheading of Kantner. The brief video circulated Monday, Feb. 27, by the SITE Intelligence Group, which monitors jihadi websites, is the first sign that the brutal militants proceeded with their threat to kill Kantner in the southern Philippines after a Sunday ransom deadline lapsed. (SITE Intel Group via AP)