A Campbell woman pleaded no contest Friday to felony vehicular manslaughter for driving the wrong way on Highway 280 and causing a head-on collision that killed a 54-year-old woman and injured her 16-year-old son, prosecutors said.

Constellatia Martin, 26, also pleaded no contest to felony reckless driving with an enhancement for great bodily injury in exchange for a maximum sentence of nine years and eight months in prison, according to the San Mateo County District Attorney’s Office. The vehicular manslaughter charge also has a hit-and-run enhancement.

On the afternoon of April 22, 2023, Martin entered southbound Highway 280 in a northbound direction in her Ford Fusion, prosecutors said. Just north of the exit at Woodside Road, Martin struck a BMW head-on, killing driver Eden Palmer of

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