![\"sonar-locates-sunken-boat-near-alcatraz.png](\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/07\/sonar-locates-sunken-boat-near-alcatraz.png#.png\")
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San Francisco Police Department<\/p>\n
Investigators are now using a remotely operated vehicle to assess the wreckage while officials determine whether it is safe and feasible to recover the boat.<\/p>\n
“The SFPD is working diligently with partner agencies and evaluating recovery options to determine whether it is safe and feasible to recover the wreckage of the Volare,” the department said.<\/p>\n
The Stockton, California-based cabin cruiser capsized around 3:30 p.m. Tuesday about 600 feet west of Alcatraz Island while carrying 20 people. Authorities said the group had gathered for a memorial trip to scatter the ashes of a family friend in San Francisco Bay.<\/p>\n
Crews rescued 16 people from the water. One passenger, 78-year-old Clifford Boisa<\/a>, died after being brought ashore. A dog aboard the Volare was also found dead.<\/p>\n The U.S. Coast Guard suspended its search<\/a> Wednesday evening for three missing passengers.<\/p>\n On Thursday, San Francisco police said marine unit officers recovered the body of 58-year-old Tondra Miller<\/a> of Sacramento County, also known as Tondra Madruga, after it was spotted in the water west of Treasure Island within the search area. Miller was a friend of the Boisa family and had joined the memorial trip.<\/p>\n Two passengers remain missing and presumed dead: Jackie Boisa, Clifford Boisa’s wife, and Carol Boisa, his sister.<\/p>\n “SFPD will continue its investigation into the cause of the sinking vessel while continuing the recovery efforts of the remaining missing individuals,” the police department said.<\/p>\n \n More from CBS News\n <\/p>\n