Suspected serial killer David Misch was charged Monday with the abduction slaying of Michaela Garecht, a nine-year-old who vanished from a Hayward street corner in November 1988 and has been one of the San Francisco Bay Area’s most high-profile missing children’s cases, authorities said. Misch has been incarcerated at the state prison medical facility in Stockton for the December 1989 stabbing death of 36-year-old Margaret Ball at her home in unincorporated Hayward. He has also been charged with the 1986 cold case murders of two young Fremont women whose bodies were found alongside Mill Creek Rd. “Today is about family,...