 And after the third brush fire this week in California, people living in Del Mar Heights are beginning to wonder if the fires were intentionally set. John Fink has more. 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.