Missing Mariposa County Juvenile Located One Day After National Missing Persons Day

“Briella “Luna” Guerriera has been found and returned to her home—MCSO photo

Mariposa County, CA – According to sheriff’s authorities, a 13-year-old Mariposa County child who went missing has returned home safely.

Investigators have released little information about her return or the reason she left her Mariposa home. Sheriff’s investigators only share that Briella “Luna” Guerriera has been FOUND and returned to her home.”

As we reported here yesterday, Tuesday, February 3, 2026, Guerriera was last seen at her residence in Lush Meadows between Sunday (2/1/26) night and Monday (2/2/26) morning. Sheriff’s officials gave her description and asked the public for help in finding her.

Additionally, yesterday was National Missing Persons Day, a reminder of the importance of awareness, resources, and community support necessary in finding missing community members, family and friends, according to Tuolumne County Sheriff’s officials.

“In honor of National Missing Persons Day, TCSO would like to focus on our missing community members with the release of a Missing Person Page,” relayed sheriff’s officials. “This page gives the details, pictures, and information on those missing that the Sheriff’s Office is seeking information to find.”

The public can find the page by clicking here and learn more about missing persons cases and how to help. The redesigned site was created with the community in mind, and it includes a variety of tools and information to assist residents in learning about and connecting with their Sheriff’s Office.

“From improved accessibility, easy-to-find public information, online forms and resources, and links to financial budget information, we hope you find the resources you need, and if you don’t, contact information will get you directly to us,” advised sheriff’s officials.