 After the third brush fire in a week in Southern California's Del Mar Heights, north of San Diego, people are beginning to wonder if the fires might have been intentionally set. John Fink has details. The most recent fire was contained to under an acre, but the Metro Arson Strike Team is investigating the situation. Weston Jackson runs the trails in the area frequently. He was evacuated this week but returned to share his concerns with investigators. He tells NBC7 the timing of the fires bothers him.