Rescuers are still searching for three people missing after a boat sank in cold, fast-moving waters of San Francisco Bay near Alcatraz Island, according to authorities. Multiple outlets report that one person has died. The incident involves a boat connected to a memorial service, though details about the circumstances of the voyage are not specified in the provided accounts. Authorities continue recovery and search efforts as conditions on the bay present challenges for responders. The search is ongoing for the remaining missing individuals, with rescue teams working to locate them in the area near Alcatraz. The reports draw on statements from officials cited by news agencies, indicating that the vessel went down close to the island and that the water temperature and current complicate search operations. The only confirmed fatality is reported as the death of one person, while the status of the three other passengers remains unknown as the search continues.