Thanks to everyone for your help and solutions.
My co-worker, who flashed my root and recovery, was able to get it back to 4.3 stock. Unfortunately, the backup that he made before rooting did not work in recovery [twrp]. So I lost all my pics from the last two months since getting my phone.
As sad as I was that I couldn't recover the pics, I am happy to have my phone back to normal+root.
I'm not sure, but maybe it bricked from trying to flash cm11 thru twrp?! Can't really say, but the recovery did not go thru either.... It went thru "successfully" but after I would reboot then it would stay on ATT splash.
Oh well... all is good now. I will steer away from custom roms for now and wait until the 4.4 update comes out for my i747. Or if i get another phone later on, I can use the s3 as a lab rat.
Again, thanks to everyone!