The San Lus Obispo County Sheriff’s Office is investigating the 6th person to die at the Oceano Dunes this year. Officials say the victim is described as an 18-year-old male from the Sacramento area. They say he was flowing another motorcycle rider when he went off a 30-foot dune at an unknown speed. He suffered a traumatic injury on impact. While the investigation is ongoing, Alcohol does not appear to be a factor in the tragedy.