. >> reporter: sharon ron, mick -- sharon, michaela garecht's mother, got the news she's been waiting for. the victims of the speed freak killers -- >> if this is michaela, it breaks my heart. it breaks my heart. i scuff want to find her and bring her -- i just want to find her and bring her home. >> reporter: investigators say they were given the bone by the family of 16-year-old joanne hobson. they had this single bone police that did not belock. it was sent to hayward police two weeks ago. detectives say the approx malt age of the child and the amount of time its -- approximate age of the child and the amount of time it's been buried leads them to this belief. garecht's mom just wants to know what happened to her daughter. she write as blog. "i think this might be it," she said. hayward police are working with the fbi. they expect it to be several weeks before the tests are in and they will know if that bone belongs to michaela garecht. back to you. >> thank you. >>> police in hollister are asking for help to find a 25- year-old woman who has not been seen since she dropped off her