Investigators said his 24-year-old son, Jonathan Pedraza, tried to break out of the secured property by driving his car through the fence because he didn't have a security code to get out of the storage facility.
When employees refused to open the gate, he drove through it.
A short time later, the same vehicle was involved in a traffic crash in Baldwin Park.
Further investigation led police back to the storage facility, where they found Pedraza.
Authorities are investigating a possible motive.
City News Service contributed to this report.