Sean Foster

A man who allegedly evaded deputies, police and the highway patrol in a Jan. 11 chase through downtown Sonora was arrested a week later in Tuolumne, and he remained locked up Tuesday at Tuolumne County Jail.

Sean Foster, 29, of Jamestown, was wanted in connection with a probation warrant and the high-speed chase. Staff with the Tuolumne County Sheriff’s Office put out a request to the public Monday last week seeking help finding Foster.

Foster allegedly led a California Highway Patrol officer on a chase in February 2017 in Jamestown. Foster was apprehended in that 2017 incident and arrested on suspicion of driving on a suspended license; reckless evading; resisting, obstructing and delaying arrest; and being a felon possessing ammunition.

Foster was also involved in a pursuit in July 2010 in the Twain Harte area, Officer Steve Machado with Sonora CHP said last week. Foster allegedly was in a stolen truck in that chase and he was apprehended in that 2010 incident.

In the most recent chase involving Foster, sheriff’s staff said the pursuit started shortly after 10 p.m. Saturday, Jan. 11 in the area of Cherokee Road and Tuolumne Road, west of Summerville High School, because a deputy saw a vehicle with an obstructed license plate make an unsafe turn near Cherokee and Tuolumne.

The deputy tried to get the driver of the vehicle to stop. The driver kept going and more law enforcement officers joined the chase. Three agencies — Tuolumne County Sheriff’s Office, the Sonora Police Department, and the CHP — had sworn officers in marked vehicles chasing Foster through downtown Sonora, on Green Street and on Washington Street, witnesses said.

Witnesses on South Green on Jan. 11 said they saw six or seven law enforcement vehicles racing up Green Street past police headquarters and up the hill toward county administration buildings and the courthouse. Witnesses on Washington Street on Jan. 11 said they saw as many as a dozen law enforcement vehicles going up Washington toward the Red Church.

The chase covered more than 20 miles and reached speeds faster than 100 miles per hour before it ended somewhere on Chicken Ranch Road. That’s where the driver ditched his vehicle, ran, and successfully hid from law enforcement. Sheriff’s staff put out their request for help locating Foster on Monday, Jan. 13.

Five days later, a tipster contacted the Sheriff’s Office on Saturday morning to say Foster had been seen walking to a residence on Cherokee Road in Tuolumne. Foster was wanted for evading law enforcement and for a post-release community supervision warrant.

Deputies went to the house on Cherokee and Foster ran out the back door. Deputies and their trained law dog, K9 Thor, ran after Foster, cornered him, and Foster surrendered. Foster was arrested and so was a woman named Kelley Herzer, 50, of Tuolumne, who was home at the house Foster ran from when he ran from it.

Foster was booked at Tuolumne County Jail on suspicion of felony evading, resisting arrest, and the warrant. Herzer was arrested on suspicion of being an accessory to Foster by allowing him to hide in her house, resisting arrest, and making criminal threats.

Foster remained in custody Tuesday at Tuolumne County Jail, a sheriff’s employee at the jail said in a phone interview. He was held without bail on a no-bail probation hold.


Contact Guy McCarthy at or 588-4585. Follow him on Twitter

at @GuyMcCarthy.


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