AMERICAN CANYON (CBS SF) — A 23-year-old Martinez man was in custody on a murder charge Monday in connection with the fatal weekend parking lot shooting of an American Canyon Safeway employee.

Nathan Gabriel Garza, 18-year-old from Fairfield, was shot and pronounced dead at the scene Sunday afternoon.

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The Napa County Sheriff’s Department said deputies arrested Christopher “Roly” Young less than two hours later after they discovered a vehicle connected to the crime — a white colored Cadillac sedan with a partial California license plate of “7NP” that had been seen fleeing the scene at a high rate of speed.

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Residential surveillance video showed a male subject matching the description of Young parking and exiting the vehicle within minutes of the shooting. A subsequent search of the vehicle located a .45 caliber handgun, the same caliber handgun used in the Safeway shooting.

At approximately 12:30 pm, multiple reports came into Napa Dispatch regarding a Black male adult who was jumping fences and running through backyards. Napa County Sheriff’s deputies and detectives responded quickly and apprehended Young.

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Detectives would like to talk with anyone who witnessed the incident or has information that may help solve this case. Our detectives can be reached at (707)253-4591.