A knife-wielding man was arrested Saturday for criminal trespassing after allegedly terrorizing residents in a Sacramento neighborhood.  Haunting video captured the moment Brian Mattson appeared on the porch of Rebecca Breen’s home Thursday evening brandishing a knife and appearing to making repeated stabbing motions.  Brian Mattson, 56, was arrested Saturday for allegedly terrorizing a Sacramento neighborhood with a knife. Ring “We heard a loud knock and we looked in the ring camera and we noticed that there was something very strange going on,” Breen told KCRA . “It was terrifying. It was absolutely terrifying.” Sacramento County Sheriff’s Lt. Amar Gandhi told the outlet deputies received similar calls from several other residents.  Multiple neighbors frantically called police about Mattson brandishing a knife, authorities said. Ring “It’s pretty scary stuff. He’s going out there literally thrashing on doors with knives ,” he said. “But fortunately, again, nobody hurt.…