Authorities say skeletal remains found in the East Bay Hills are those of a Swedish exchange student who disappeared more than 30 years ago. The Marin Independent Journal first reported Tuesday that the remains belong to Elisabeth Martinsson, a 21-year-old studying at the College of Marin who vanished on Jan. 17, 1982. The Marin County Sheriff held a news conference Tuesday afternoon to answer questions after intense public interest. Investigator Jamie Scardina said they got her positive identification from dental records in November, after skeletal remains were first found in Fremont's Morrisson Canyon in 2010. But he said his agency...