"Every time I get out on the highway, I just keep looking, could that be it, could that be him?" Clendenin said.
Police believe the shooter was driving a semi with an orange cab carrying a white trailer. Guerrerro's family said nobody will be ever to replace him.
“Don't be afraid to face the consequences. Take responsibility for what you did to a father, a brother and uncle, a good man, a good man that was very well-loved, a fellow trucker,” Clendenin said.
Aria will be taken to Guerrero's 21-year-old son. Clendenin said the family has lost five people in the past year. They're asking for help with Guerrero's funeral costs.