IT’S NOT A. IN A VIOLATION OF THE CEASE FIRE. OFF THE TOP HERE. 4:00. A CHAOTIC COURT HEARING FOR THE MAN CAUGHT APPROACHING HOMES WHILE HOLDING A KNIFE. BRIAN MASON WAS CAPTURED ON DOORBELL VIDEO GOING UP TO HOUSES IN THE ARDEN-ARCADE AREA WITH A KNIFE IN HAND, AND HE WAS ARRESTED LAST WEEK AND RELEASED OVER THE WEEKEND. AND THEN HE WAS ARRESTED HOURS LATER FOR TRESPASSING. AND TODAY WAS HIS FIRST COURT APPEARANCE SINCE HE WAS TAKEN INTO CUSTODY A SECOND TIME, BUT IT TOOK HOURS TO BEGIN BECAUSE HIS OUTBURST KEPT DELAYING THE PROCEEDINGS IN COURT. KCRA 3’S ANAHITA JAFARY IS LIVE WITH MORE ON WHAT HAPPENED INSIDE THAT COURTROOM TODAY. ANAHITA. YEAH. LISA CURTIS, THERE WAS A MAJOR DELAY IN COURT TODAY. WE WAITED NEARLY TWO HOURS FOR BRIAN MASON TO BE BROUGHT OUT. AND ONCE HE HEARD THE CHARGES, WELL, HE WASN’T VERY HAPPY. HE BEGAN DEMANDING HIS PAPERWORK AS WELL AS CURSING AT THE COURT. LET’S LISTEN IN. I WAS TELLING ME I’M LOOKING AT A VIOLATION OF TRESPASSING. PAPERWORK. WHAT THE. WATCH YOUR LANGUAGE AND HEAD DOWNSTAIRS. CAN I HAVE SOME PAPERWORK THAT SAYS WHAT TIME I’M LOOKING AT? 56 YEAR OLD BRIAN MASON WAS ARRESTED TWICE OVER THE WEEKEND. HE WAS ORIGINALLY SEEN THURSDAY NIGHT ON RING CAMERA VIDEOS ON LA SIERRA DRIVE IN ARDEN PARK, GOING UP TO HOMES WITH A KNIFE AND MAKING A STABBING MOTION REPEATEDLY. DEPUTIES SAY NO ONE WAS HURT, AND NEIGHBORS SAY THEY’RE SCARED FOR THEIR SAFETY. DEPUTIES THEN ARRESTED MATTSON SATURDAY MORNING, SAYING THEY COULD ONLY BOOK HIM ON A CRIMINAL TRESPASSING CHARGE. THE SACRAMENTO COUNTY SHERIFF’S OFFICE SAYS IT ASKED PROBATION OFFICIALS TO PLACE A PROBATION VIOLATION. HOLD ON, MASON, BECAUSE HE’S ON FELONY PROBATION. BUT THAT REQUEST, WAS INITIALLY DENIED. MASON WAS THEN RELEASED WITHIN A COUPLE OF HOURS. HOURS LATER, THOUGH, DEPUTIES RESPONDED TO ANOTHER TRESPASSING CALL INVOLVING MASON NEAR FAIR OAKS BOULEVARD AND SAN LUCAS, WAY LESS THAN HALF A MILE FROM THE LOCATION OF THE FIRST ARREST. NOW, SOME OF MY NOTES HERE SHOW US THAT THIS TIME A PROBATION VIOLATION WAS APPROVED AND MASON WAS TAKEN INTO CUSTODY IN COURT TODAY, THE JUDGE SAID MASON’S PROBATION PROBATION IS REVOKED. OUR WORLD IS IS A DANGEROUS PLACE AT TIMES, RIGHT? AND WE HAVE TO REALLY BE HYPER VIGILANT OF WHAT WE DO AND WHERE WE ARE AND OUR SURROUNDINGS. AND IT’S UNFORTUNATE, BUT THAT’S REALITY RIGHT NOW. THAT’S WHAT WE’RE HOPING TO TAKE SITUATIONS LIKE THIS AND LEARN FROM THEM, PREVENT IT IN THE FUTURE. BUT YOU KNOW, I’M NOT GOING TO GO HOME LOSING SLEEP. I’M OPTIMISTIC AND HOPEFUL THAT THE SYSTEM WILL DO WHAT IT NEEDS TO DO AND PROTECT THE COMMUNITY. NOW, MADISON’S NEXT COURT DATE IS GOING TO BE NEXT TUESDAY ON MAY 12TH. THAT WAS WHAT IT WAS SET FOR LIVE IN SACRAMENTO. I’M ANAHITA JAFARY KCRA 3 NEWS. YOU KNOW, SOMETHING LIKE THIS HAPPENING IN YOUR NEIGHBORHOOD. I CAN ONLY IMAGINE THAT NEIGHBORHOOD IS RATTLED. HOW ARE THEY DEALING WITH ALL THIS? WE SPOKE WITH THAT NEIGHBOR THAT YOU JUST HEARD FROM, ALONG WITH ANOTHER NEIGHBOR, AND THEY BOTH SAY THAT THEY WANT TO HEAR, YOU KNOW, MORE BEING DONE, ESPECIALLY ON THE SIDE OF NEIGHBORHOOD WATCH. THEY WANT TO MAKE SURE THAT HAPPENS AND THEY WANT TO S

Chaos erupts in Sacramento courtroom during knife threat suspect’s arraignment

Brian Mattson, 56, was arrested twice over the weekend after being seen on video making stabbing motions with a knife in front of homes in Arden Park, leading to a chaotic court appearance where his probation was revoked.

KCRA logo

Updated: 6:31 PM PDT May 5, 2026

Editorial Standards ⓘ

Brian Mattson, a 56-year-old man arrested twice over the weekend after being seen on video making stabbing motions with a knife in front of homes in Arden Park, caused chaos during his court appearance Monday as he shouted and cursed in the courtroom. There was a major delay in court today. KCRA reporter Anahita Jafary waited for nearly two hours until Brian Mattson was brought out. From there chaos erupted as Mattson began shouting and cursing. Mattson asked what the violation was for and to have “some paperwork.” Mattson was first seen Thursday night on Ring camera footage on La Sierra Drive in Arden Park, repeatedly making stabbing motions with a knife in front of homes. Deputies said no one was hurt, but neighbors expressed concern for their safety. “I hope that it’s a reflection of what someone could do in public. We saw what it could be done and obviously that’s a threat to us, into into the general public and, you know, whoever you may be and so, it’s unfortunate,” said Michael Deauville, a neighbor in Arden Park. Deputies arrested Mattson Saturday morning but said they could only book him on a criminal trespassing charge. The Sacramento County Sheriff’s Office requested probation officials place a probation violation hold on Mattson, who is on felony probation, but the request was initially denied. Mattson was released within hours. “I really wanted to just be down here to one, learn a little bit how the system works. So instead of just, you know, being upset on our couches when when he got released so fast, be educated in a little more and I think it starts with, you know, being here,” Deauville said. Hours later, deputies responded to another trespassing call involving Mattson near Fair Oaks Boulevard and San Lucas Way, less than half a mile from the location of the first arrest. This time, a probation violation hold was approved, and Mattson was taken back into custody. In court Monday, the judge revoked Mattson’s probation. Neighbors are now considering ways to protect themselves moving forward. “There’s groups that, you know, neighborhood watch being one of them is an example. Maybe we do something like that. Maybe it’s just, you know, bringing the community together and, you know, finding other ways without a formal doctrine of what that is as well,” Deauville said. Mattson’s next court date is scheduled for Tuesday, May 12.See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel

SACRAMENTO, Calif. —

Brian Mattson, a 56-year-old man arrested twice over the weekend after being seen on video making stabbing motions with a knife in front of homes in Arden Park, caused chaos during his court appearance Monday as he shouted and cursed in the courtroom.

There was a major delay in court today. KCRA reporter Anahita Jafary waited for nearly two hours until Brian Mattson was brought out. From there chaos erupted as Mattson began shouting and cursing. Mattson asked what the violation was for and to have “some paperwork.”

Mattson was first seen Thursday night on Ring camera footage on La Sierra Drive in Arden Park, repeatedly making stabbing motions with a knife in front of homes. Deputies said no one was hurt, but neighbors expressed concern for their safety.

“I hope that it’s a reflection of what someone could do in public. We saw what it could be done and obviously that’s a threat to us, into into the general public and, you know, whoever you may be and so, it’s unfortunate,” said Michael Deauville, a neighbor in Arden Park.

Deputies arrested Mattson Saturday morning but said they could only book him on a criminal trespassing charge. The Sacramento County Sheriff’s Office requested probation officials place a probation violation hold on Mattson, who is on felony probation, but the request was initially denied. Mattson was released within hours.

“I really wanted to just be down here to one, learn a little bit how the system works. So instead of just, you know, being upset on our couches when when he got released so fast, be educated in a little more and I think it starts with, you know, being here,” Deauville said.

Hours later, deputies responded to another trespassing call involving Mattson near Fair Oaks Boulevard and San Lucas Way, less than half a mile from the location of the first arrest. This time, a probation violation hold was approved, and Mattson was taken back into custody.

In court Monday, the judge revoked Mattson’s probation. Neighbors are now considering ways to protect themselves moving forward.

“There’s groups that, you know, neighborhood watch being one of them is an example. Maybe we do something like that. Maybe it’s just, you know, bringing the community together and, you know, finding other ways without a formal doctrine of what that is as well,” Deauville said.

Mattson’s next court date is scheduled for Tuesday, May 12.

See more coverage of top California stories here | Download our app | Subscribe to our morning newsletter | Find us on YouTube here and subscribe to our channel