OAKLAND — Family members of a man who died last week in what the CHP declared a one-vehicle crash say investigators may have it wrong, that the evidence suggests he may have been the victim of a hit-and-run.

Aaron Fuller, a 35-year-old Oakland man, died Sept. 30 in what CHP investigators found to be an accident with no one else involved. Responding to a call just after 2 a.m. at the connector ramp between westbound Interstate 580 and Highway 24, investigators closed the roadway for a little more than an hour and ultimately determined Fuller lost control of his motorcycle on a curve in the road and struck a concrete barrier wall. He flew from the bike and struck a concrete pillar headfirst, and fell 50 feet to the grass below, the CHP told Fuller's family.