Belmont Police, FBI and the San Mateo County Sheriff's office all searched a home and a park on Farm Hill Boulevard Wednesday in Redwood City for evidence in a nearly 30-year-old cold case. Police say the search is about Ylva Hagner, a 42-year-old woman who went missing in October of 1996. https://abc7ne.ws/3BivklL #coldcase #redwoodcity #fbi #sanmateocounty #YlvaHagner #belmontpolice #sanmateocountysheriff #nasa #abc7news