From KABC:

“The suspect that prompted Orange County’s John Wayne Airport to be placed on lockdown Friday night, temporarily halting all air traffic in the area, has been arrested.

That man somehow breached airport security and ended up on the tarmac, in a secure area where only airport employees should access, according to the Orange County Sheriff’s Department.”

Read the full report:

https://abc7.com/travel/oc-airport-on-lockdown-because-of-security-incident/10965253/