Recently had my account at Bitfinex hacked.  without going into details, the hacker got my password and transfered 14.39 bitcoins to this address 1L6cuvsv9HJhu99mMUHwZeWjGujRXWsFmr.

Bitfinex has yet to give me the ip address the hacker logged onto my account.  not sure they will.  anyways, i understand it is most likely not the hackers true IP.

The hacker did log onto my gmail account.  The ip was 96.36.247.114 and the hacker was using Firefox 27.0.  Firefox makes me think that the hacker was likely using the TOR network as the TOR bundle comes with Firefox.  However, the version that TOR comes bundled with is Firefox ESR.  So maybe not.

i was thinking of asking bitfinex for information on any accounts that have been logged onto from this IP. bit shot in the dark and doubt they would give me the information anyways.

The coins have appeared to go through a tumbler, perhaps.  not sure how to really tell. they've moved around a bit. 

Anyways, if anyone has any advice or resources on tracking this thief i would greatly appreciate it.
a couple specific question i could use help on are:

1 - how do you tell a bitcoin address is from an exchange or otherwise traceable wallet?
2 - how can i get more information from Bitfinex, supaena?  do i have to get law enforcement involved?  which law enforcement? can i subpaena the information?
3 - how do i get more information about the ip i have? from Charter in South Carolina?  subpaena? local law enforcment.

I am well aware that i am probably wasting my time, but in the least i would like to attempt to trace the coins to an exchange (my best chance albeit very remote ).

Somebody has to learn how to catch these bitcoin thiefs sometime soon or confidence in Bitcoin will eventualy fade.  Seems Bitcoin theft is the safest form of crime nowadays.  I've even run across a few articles on how to steal bitcoins and an industry is growing around laundering bitcoins.