The crash happened last week at the property in Reedley.
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California Highway Patrol officers say 40-year-old Melecio Hernandez-Ayala got into a company van and hit another employee, 25-year-old Jose Aguilera, who was walking.
Aguilera died at the hospital.
RELATED: Man killed in hit-and-run on Foster Farms property in Fresno County
On Sunday, his family held a car wash to help raise money to cover costs.
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"I think that we are still trying to process what happened but are getting through it together all my friends and family have been a lot of support,'' Aguilera's older sister Maria Najera said.
Aguilera's family has set up a GoFundMe to help with funeral costs. To support, click here.
Officers booked Ayala-Hernandez into the Fresno County Jail on charges of felony hit and run and a stolen vehicle.