You may write Charles directly using the following mailing address:
Charles D. Watson B37999
480 Alta Road A5-201L
San Diego, CA 92179
Charles is now able to receive screened emails and photos using the JPay email service. To set up an account, look him up by choosing "California" for the state, and "B37999" for the Inmate ID. Be sure to include your mailing address in your email if you desire a response because he does not have the ability to reply to you electronically.
He would love to hear from you. Thanks!