Possible hack...please investigate

So i was pvping this elyos cleric, unfortunately i got killed. I looked around the radar for some time, seeing he's not already there, i ressurected. And when i did, to my surprise there he was (was he hiding?), oh crap he's cleric btw....so i died again...then I looked at the distance, oh man, wow he sure can fly..coz it jumps from 10's to 15's, is that possible, normally?

his IGN: Singlee

here's the vid:

http://www.youtube.com/watch?v=cRX3V0ykA1Q


I'm waiting for a banhammer...lol.... He disappeared at 100 meters plus when i clicked to resurrect, and when i did, he was already 17 meters close to me....it's really really obvious guys.... in addition his distance from me made really big jumps..... what else is there to conclude from which is so obvious...