A Folsom resident has been identified as one of the victims recovered following Tuesday’s deadly boating accident in the San Francisco Bay that claimed multiple lives and left others missing.
The San Francisco Office of the Chief Medical Examiner identified the woman as Tondra Lynn Madruga, 58, also known as Tondra Miller, a resident of Folsom according to public records.
Madruga’s body was recovered Thursday after the San Francisco Police Department continued search operations in the waters near Treasure Island. According to authorities, officers conducting sonar operations shortly after 1 p.m. were alerted by occupants of a passing vessel who spotted a body in the water. Emergency crews recovered the victim, who was pronounced dead at the scene.
Her recovery marked the second confirmed fatality connected to Tuesday’s boating disaster, which occurred near Alcatraz Island when a 49-foot private cabin cruiser carrying 20 people capsized and sank.
According to the U.S. Coast Guard, the group was participating in a memorial service aboard the vessel and was returning from Angel Island when it encountered rough conditions on the bay. Officials said a large wave struck the three-level cabin cruiser, causing it to rapidly lose stability before overturning and sinking into approximately 130 feet of water.
The emergency unfolded Tuesday afternoon, prompting a large-scale response from the U.S. Coast Guard, San Francisco Fire Department, San Francisco Police Department and numerous civilian boaters who rushed to assist. Sixteen people were rescued from the frigid waters, while several others were initially reported missing. A dog aboard the vessel also died in the incident.
“Following Tuesday’s boating accident in the San Francisco Bay, our family is heartbroken by the loss of our beloved mother, daughter, sister, and aunt, Tondra Madruga. As this event has received significant public attention, we thank you for respecting the privacy of our family and all those affected as we grieve,” Madruga’s family said in a statement released Thursday. “Our hearts remain with every family impacted, and we sincerely appreciate your kindness and understanding. We extend our heartfelt thanks to the U.S. Coast Guard, the San Francisco Fire Department, the San Francisco Police Department, all of the first responders, and the civilian boaters and community members who selflessly assisted in the search and rescue efforts. Your dedication and support mean more to our family than words can express. Thank you for your prayers, love, and support.”
Madruga was a native of San Luis Obispo and was a graduate of Bella Vista High School, according to records.
Earlier this week, authorities identified the first confirmed victim as Clifford Joseph Boisa, 79, of Sutter County. The Sutter County Sheriff’s Office said Boisa was a retired reserve deputy who served the agency from 1987 through 2001 and extended condolences to his family.
As of Thursday evening, three people remained unaccounted for. Although the U.S. Coast Guard suspended its active search-and-rescue mission Wednesday night, San Francisco police continued recovery efforts, including searches for the missing individuals and the submerged vessel.
Officials said the cabin cruiser remains approximately 130 feet below the surface of the bay, where challenging underwater conditions have complicated recovery operations.
The investigation into what caused the vessel to capsize remains ongoing.
Copyright © 2026, Folsom Times, a digital product of All Town Media LLC. All rights reserved. No portion of this publication may be reproduced, distributed, or transmitted in any form or by any means, without the prior written permission of the publisher.
