FAIRFIELD — Fairfield police say they're working with the FBI in the search for the killer of a 13-year-old girl whose body was found in a park last week.

Police released few new details during a press conference Wednesday, but did repeat their request for help from the public, especially anyone who may have seen Genelle Renee Conway-Allen Thursday afternoon.

The teen was reported missing around 5:45 p.m. Thursday by her guardian at the foster home in nearby Suisun City where she lived. Police say her naked body was found a little before 7 a.m. Friday by a passerby.

The manager of a market located near a surveillance camera that took a photo of Genelle shortly before she vanished told police that a girl matching her description was outside his store.

Ibrahim Mohammad told The San Francisco Chronicle that the girl said she was waiting for a ride when he asked.

BEST BITES

Judges' Choice Cheesemongers:

First Place: Devorah Harris of Oliver's Market in Cotati using Capra Stanislaus from Nicolau Farms

Second Place: Christina Strategos of Nugget Market in Woodland using Boont Corners from Pennyroyal Farm

Third Place: Jan Barret of Oliver's Market, Montecito Store in Santa Rosa, using Classico by Tumalo Farms from Vintage Cheese Company

People's Choice Cheesemongers:

Sara Payne of Whole Foods Market in Napa, using Assa from Tomales Farmstead Creamery

People's Choice Chefs:

Eli Anderson of Local Dish of Eastside Petaluma and Santa Rosa Community farmers markets for A Taste of Spring, using Chevoo Dill Pollen and Garlic Fresh Goat Cheese