Apparently this is video from a murder with a knife on the Madrid Metro some 2 years ago, video just being released. Skinhead stabs left wing supporter, killing him, and later stabs another who engages him. Any Spanish members have any further?
Note the stance, note the proximity (common in daily life), and note the lack of commonality with typical "martial arts" knife defense training (squared off, aware of blade, able to take stance, center and focus on knife attack).
Food for thought:
http://www.elpais.com/videos/espana/...pepunac_2/Ves/