Realitys/Deviouspks3ller/Possibly Others.

http://www.sythe.org/members/434212-realitys.html
http://www.sythe.org/members/394265-deviouspks3ller.html
Also believe these may be his:
http://www.sythe.org/members/421654-googlyeyes.html
http://www.sythe.org/members/396344-rlpkseller.html
http://www.sythe.org/members/395937-anonymously123.html
http://www.sythe.org/members/419759-dikkedani.html

Given the fact that they all share the same IP and are all interested in the RSPS section, usually DeviousPK (ArteroPK) or RecklessPK (Instantpk) (which may I note were made from the base of the same server and are very similar to begin with so it makes sense that he might have played both at points).
http://www.sythe.org/private-server-gold-items-misc/1640837-recklesspk-rares.html
http://www.sythe.org/private-server-accounts/1642479-recklesspk-seller.html
http://www.sythe.org/private-server-accounts/1748558-maxed-recklesspk-account.html
http://www.sythe.org/private-server-gold-items-misc/1744368-cheap-recklesspk-store-pp-only.html
http://www.sythe.org/private-server-gold-items-misc/1796576-buying-devious-arteropk.html

IP match:
http://prntscr.com/7woxs2

And none of their activity gaps overlapped except for one briefly I believe.

Both Dev and Realitys list their skype as dani.dvpk here:
http://www.sythe.org/private-server-gold-items-misc/1633389-selling-dvpk-item.html
http://prntscr.com/7woxyt
http://www.sythe.org/14593350-post16.html
http://prntscr.com/7woy1w

Matches a user on AWU trying to buy the ArteroPK database:
http://************/showthread.php?tid=3626
http://prntscr.com/7woy6p

 

Banned