Am I Bricked?

Hi Guys,

I'm on a budget so I picked up an android off Craigslist today. Here is my problem -

Samsung S3 Rooted
Phone was working fine until I went into TWRP and wiped everything I could, and formated the phone. Obviously, I don't know exactly what I did.

Immediate problem -
Phone is stuck on boot, and I can't get into Fastboot, or a safe mode.

When I reset the phone, (by holding Power), the phone vibrates, shows a battery cell, then gets stuck on the boot screen. I guess this guy was using KToonsez KT747 - Kernel Dominaton, because that's what it says when I boot up. Then it just gets stuck there.

If I reset the phone and hold VolUp/Home/Pwr, it just gets stuck in a loop where it just vibrates over and over.

If I reset the phone and hold VolDn/Home/Pwr, I get the following -

Warning
A custom OS can cause critical problems ... ...If you want to download a custom OS press the volume up key. Otherwise, press the volume down key to cancel. If I press the VolDn key, it reboots and get stuck at the boot screen where it shows KToonsez KT747 - Kernel Dominaton. If I press the VolUp key, it gets stuck at Downloading... Do not turn off target !!

In the top left it shows the following...
Product name: SGH-T999N
Custom Binary Download: Yes (4 counts)
Current Binary: Custom
System Status: None
Qualcom Secureboot: Enable
Warranty Bit: 1
Bootloader AP SWREV:1

WHAT. DO.

Suggestions anyone?

Thank you,
Nate

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