A knife-wielding maniac who brought terror to a Sacramento neighborhood in shocking Ring footage went ballistic in court. Brian Mattson, 56, yelled he wanted “paperwork” and asked what the trespassing charge was for as he appeared in front of a judge on Monday. “Can I get some paperwork? I mean what the f*ck is the f*cking trespassing for?” Brian Mattson asked, standing behind bars in an orange jumpsuit. “Can I have some paperwork that says what time I’m looking at?” Knife-wielding maniac Brian Mattson is pictured in court on Monday. Mattson was caught on camera terrorizing a house in a Sacramento neighborhood. Ring The judge in Mattson’s case revoked his probation during the hearing, keeping him behind bars for now, after he was released despite terrorizing an Arden Park resident by making stabbing motions with a knife in front of their home. Police said they could only book him on a criminal trespassing charge and requested a probation violation hold, which was denied.…