Lisa Smith was last seen hitchhiking in Santa Rosa. There is speculation her case could also be related to the Santa Rose Hitchhiker Murders. (Photo Credit: Charley Project.org) On March 16, 1971, 17 year-old Lisa Smith was hitchhiking on Hearn Avenue in Santa Rosa, California. She may have been trying to get to Petaluma, California where she lived. She has not been seen since.