$12K reward offered for suspect info in fatal Marin County hit-and-run

The family of a San Francisco woman killed in a March hit-and-run collision in Marin County is offering a $12,000 reward for information leading to the arrest and conviction of the person who fled the scene. The family of a San Francisco woman killed in a March hit-and-run collision in Marin County is offering a $12,000 reward for information leading to the arrest and conviction of the person who fled the scene. Photo: / Photo: / Image 1 of / 15 Caption Close $12K reward offered for suspect info in fatal Marin County hit-and-run 1 / 15 Back to Gallery

The family of a San Francisco woman killed in a March hit-and-run collision in Marin County is offering a $12,000 reward for information leading to the arrest and conviction of the person who fled the scene.

On March 26, Marie Siegenthaler, 29, was riding her motorcycle southbound on Highway 101 when she was struck by a vehicle just north of the Tiburon Boulevard exit, according to the California Highway Patrol.

The collision caused Siegenthaler to be ejected onto the roadway, where she was struck by a second vehicle, according to CHP Officer Andrew Barclay, a department spokesman. The second vehicle stopped, while the one that originally struck Siegenthaler drove off, Barclay said.

Investigators have narrowed the search to one of two vehicles: a 1999-2002 Chevrolet Silverado pickup truck or a 2000-2006 Chevrolet Tahoe. Officials believe the vehicle driven by the suspect will have “moderate to major” damage on the right front end of the vehicle.

According to officials, the vehicle’s turn signal light and daytime running light was shattered, along with part of the right front fender.

Investgators ask that anyone with information related to these incidents call 1-800-TELL-CHP (1-800-835-5247), or Officer Kevin Giannone at 415-924-1100. Information can be reported anonymously.

Megan Cassidy is a San Francisco Chronicle staff writer. Email: megan.cassidy@sfchronicle.com Twitter: @meganrcassidy