Detectives say Barajas was approached by suspect Kenneth Wilson at the Cherry Avenue Auction South of Fresno.
According to investigators, Wilson asked to test-drive the vehicle into the foothills.
That's where authorities believe Wilson pulled out a hand-gun and shot Barajas.
Two other passengers inside the SUV managed to run for help.
Detectives are still looking for 29-year old Kenneth Wilson, also known as Kenneth Miranda.
