The 12 year old boy in question got into an arguement with his mother early on Halloween day...

- and was told he wouldn't be permitted to go out trick or treating especially as a gay version of Justin Beiber because his mother felt the costume was disrespectful. After his mother repeatedly told him he was grounded the 12 year old retreated to his room grabbed a knife and threatened to kill his mother. The mother was able to disarm the 12 year old without issue and he was arrested on suspicion of making threats with a deadly weapon to his mother.

One has to wonder why a 12 year old has knives in HIS room...