Science teacher at HS and mentors the ham radio club
https://www.sandiegouniontribune.com/sdut-mt-carmel-high-students-make-contact-with-the-2005dec16-story.html
http://archive.is/n1sup
pic from
https://web.archive.org/web/20181012131122/https://www.mchsarc.com/?page_id=13
green shirt
"Left to right: Phil Karn (KA9Q), Jim McLaughlin (KI6ZUM), Karl “KC” Cain (KC6B), John Earnest (KG6EQU), David White (WD6DRI)"