Woman in critical condition after Petaluma motorcycle accident

<p>A Novato woman was in critical condition Monday at Santa Rosa Memorial Hospital following a motorcycle collision Sunday that killed her husband.</p><p>Martha Kolb, 51, was a passenger on the back of her husband's 2008 Harley Davidson traveling on Valley Ford Road east of Carmody Road at 3:20 p.m. when the couple collided with a car driven by Cynthia Callahan, 77, of Petaluma. Callahan was pulling out of her driveway when the collision occurred.</p><p>Michael Kolb, 48, died at the scene.</p><p>Callahan complained of pain on scene but was not treated, according to CHP.</p><p>Alcohol is not considered a factor in the collision.</p>