Horrible news im sorry. He asks a good question... how did they know? Thats the number 1 rule man. Dont ever tell anyone!! You will find out who your friends really are...and not in a good way.

Dont be afraid of them. You need to get yourself a nice 12 gauge for times like these.
Are you a medical patient? if so then your crop is legal right? You have them on tape right? If so call the police and tell them they stole alot more than your medicine...

From my experience gang bangers are bad to the bone until they have a .45 auto next to their head. Then they become the whiney babies that didnt get enough attention from mommy that they are.

Im sorry again.