At 4:32 pm Monday, the East Contra Costa Fire Protection District was dispatched to a report of a head-on vehicle crash with one person not responsive.
The crash was reported at eastbound Highway 4 just west of Baflour in the City of Brentwood. The crash was on-viewed by an officer. A medical helicopter was also requested.
By 4:42 pm, Battalion 5 reported the vehicle crash was closer to Marsh Creek Road at Highway 4. Engine 59 reported a two vehicle head-on crash with Antioch Police and CHP both on scene.
The roadway was shut down in both directions.
By 4:45 pm, one person sustained minor injuries, a second subject was trapped and in CPR according to Battalion 5.
By 5:51 pm, Battalion 5 reported this was a fatal crash.
Update per CHP:
SUSPECTED DUI DRIVER KILLS MAN ON HWY-4 in BRENTWOOD
This afternoon, at about 4:34pm, Contra Costa CHP was advised of a head on collision involving two vehicles on HWY-4 eastbound, east of Balfour Road. Upon emergency personnel and CHP arrival, it was determined that a 2018 Honda SUV was driven across the solid double yellow lines, into oncoming traffic, and collided head on into a 2013 Toyota Corolla. The solo male driver of the Toyota (51yr old man from Ripon) was pronounced deceased at the scene. The Contra Costa County Sheriff’s Coroners Office will be handling the release of his identity. The solo male driver of the Honda was ultimately arrested for suspicion of FELONY DUI.
In the initial investigation, it appears that the solo male driver of the Honda was traveling on HWY-4 westbound (in this area HWY-4 is a two lane undivided highway) and then veered to the left and across the solid double yellow lines and directly head on into the Toyota traveling in the eastbound lane. Upon emergency personnel arrival, the driver of the Toyota was pronounced deceased. The driver of the Honda, Jan Kristian Gyllstrom, 46 of Concord, was not injured and investigated for driving under the influence of alcohol and was subsequently arrested for suspicion of FELONY DUI.
If anyone witnessed this collision or the events leading up to it (that did not remain at the scene to speak with CHP) please contact Contra Costa CHP in Martinez, (925) 646-4980. HWY-4 was completely reopened at 6:25pm.
Impaired DUI driving is 100% preventable 100% of the time. There is never an excuse for it and it cannot ever be tolerated. In this situation it tragically cost the life of an innocent person. W
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