Yvonne Lisa Weber was 13 when she disappeared after an evening at the Redwood Empire Ice Arena on February 4, 1972. She and 12-year-old Maureen Louise Sterling were last seen hitchhiking on Guerneville Road northwest of Santa Rosa; the girls reportedly were trying to get to a bowling alley. An acquaintance later said the girls mentioned a tall, slender man who had asked them to smoke marijuana and described him as resembling Ted Bundy. A 2024 documentary featured a witness who thought the man resembled Jim Mordecai, but no definitive suspect has been identified.

Their skeletal remains were found December 28, 1972, on a steep embankment about 66 feet off the east side of Franz Valley Road, 2.2 miles north of Porter Creek Road. The state of the remains made the exact cause of death impossible to determine. Investigators recovered a single earring, orange beads, and a 14-carat gold cross necklace; Sterling’s mother later identified the necklace and earring as hers.

The Santa Rosa hitchhiker murders remain unsolved. Does anyone have information about the girls that could help investigators?