How to remove rear spoiler

I was wondering if anyone has ever removed their spoiler or has instructions on how to do it. I have 2 12" subwoofers in my trunk and they seem to have rattled one of the brake light screws out. i can pull one side of the LED panel off and it rattles like crazy. I got the spoiler prolly about 95% off but the middle support thing seems to be stuck or somethin. i cant find any nuts or plastic things holding it on... i even tried pounding the bolt with a hammer to get the darn thing to pop off.

I hope someone might possibly know how to do this... ive googled it and found nothing either