A video showing a Fairfield homeowner fighting off a home invader may cause “concern” as it circulates on social media, police said Saturday. The video depicts a resident of the 1700 block of Burbank Court using a shovel to battle the intruder on Tuesday before police arrived. Police praised “the actions of the homeowner, who worked to protect his family while officers were responding to the scene.” A man later identified as 30-year-old Jason Nichols attempted to break into the residence occupied by a woman and child by kicking the front door, police said. When that failed, he gained entry...