The man told police in Mt. Shasta that he had killed people at his apartment, more than 200 miles away, officials said.
A dozen additional women also accused the actor of either inappropriately touching them or kissing them, according to court documents released Tuesday. He was not charged in those cases.
Interim Chief Ed Kraus said he was "deeply sorry for what occurred."
The FBI, the U.S. Marshals Service, the National Center for Missing & Exploited Children, and Crime Stoppers are assisting in the search for Kamille McKinney.
"It's sad to see him join the chorus kowtowing to Community China & putting profits over human rights for #HongKong," Sen. Rick Scott, R-Fla., tweeted.