news West Marin 10/7 Hit-and-Run Looking for More Witnesses

The cycling community was horrified upon learning that Novato resident Aaron Paff drove his truck into four Jensie Gran Fondo participants on Saturday, October 7. His actions sent four men to the hospital. Paff fled the scene of the crash.

Paff did more than injure four cyclists; he also traumatized their children, wives, parents and extended families. He deeply affected those who rode by the crash scene afterwards, wondering why and how that could have happened. He saddened and outraged the broader cycling community, extending well beyond Marin County.

49-year-old Mill Valley resident Spencer Fast was life-lifted from the crash scene in critical condition. At the hospital, he learned that he risked losing sight in his right eye. Thankfully, he has been released from the hospital and is showing improvement.

Paff was arrested on felony hit-and-run charges, based on a video provided by a motorcyclist who happened to be passing by.

Since MCBC sent Friday’s email calling for witnesses to the crash, or to other dangerous or aggressive driving actions by Paff, we have heard from several of you. And so has the CHP. Those reports are increasingly telling a story of senseless road rage.

This case is still under active investigation. If you have additional information regarding the incident, or have witnessed Paff driving dangerously or menacingly at other times, please report that information to MCBC Executive Director Jim Elias at or CHP Investigative Detective Kevin Giannone at

MCBC is committed to making cycling safe for you and your families. We are unwilling to accept horrible events like the crash at the Jensie as inevitable. They are not inevitable. They are caused by people, and they are completely unacceptable.

To deliver this message to elected officials, law enforcement agencies, and the broader public, we rely on your support. Please join us in waging this campaign for safety.

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October 7 West Marin Hit and Run Update

A devastating incident occurred during the Jensie Gran Fondo of Marin on Saturday, October 7. Novato resident Aaron Paff plowed his pickup truck into four riders on Pt. Reyes-Petaluma Road, only four miles from the ride’s finish at Stafford Lake Park.