Another parkour hacker..
his user name is js25000js25000
Here is some evidence, I forgot to record so I just took screenshots :P
3 pics for ya here:

 

I know, the first pic actually makes sense :P the others make no sense at all

 

Dat x-ray doe. Anyway, this is good. Wait until a mod sees this and let's see what they say.

 

That guy is online right now, and was just hacking to beat level 4 again.

 

I KNEW IT :O

 

HAHA IN YOUR FACE WE FOUND THAT!

 

What also supports this thread is that back when this person hacked, level 4 was griefed and nobody could go further than where Arv is standing. Even if that guy fell, he wouldn't be back there.

 

TRUE I SAW IT

 

Still photos are insufficient evidence.
The server lags in many different ways.
Video is only way sorry.