THIS is the chilling moment a knife-wielding maniac pounds on random doors and makes stabbing motions – before suddenly fleeing.
Horror footage shows 56-year-old Brian Mattson allegedly making threatening gestures with a blade as he approached several properties in Sacramento.
Stunned homewoners were left terrified after doorbell clips showed the suspect brandishing a sharp weapon.
Arden local Rebecca Breen said her Ring doorbell started pinging on Thursday before she checked in to see who was at the front door…