A 58-year-old woman’s body has been recovered after a cabin cruiser capsized and sank near Alcatraz Island in San Francisco Bay, bringing the confirmed death toll to two. Authorities say two other people remain missing.

The San Francisco Medical Examiner’s Office identified the woman as Tondra Madruga. Her relatives described her as a beloved mother, daughter, sister and aunt, and thanked the Coast Guard, police, firefighters, civilian boaters and community members who joined the emergency response.

Officials believe 20 adults were aboard the Volare, a 50-foot cabin cruiser based in Stockton, when a wave struck it Tuesday evening and caused it to capsize. Passengers were reportedly taking part in a memorial service.
A 79-year-old man, identified as Clifford Joseph Boisa, was brought ashore with severe injuries. Despite attempts to revive him, he was pronounced dead. A dog also died in the incident. Three survivors were taken to a hospital and later released.

Civilian boaters and emergency crews rushed to help people in the water. One rescuer said passengers were banging on the vessel’s windows as they tried to escape and described conditions in the bay as extremely difficult.

The US Coast Guard suspended search operations Wednesday after teams covered about 950 square nautical miles without locating the two missing passengers or the boat. Sector San Francisco commander Jarod Toczko said there was a strong possibility people had become trapped inside the vessel.
Toczko praised the civilians who joined the rescue, saying their quick action saved lives. Sixteen people were rescued from the water.

The investigation into why the vessel capsized remains ongoing.
Source: ABC News. Reporting by Tristan Maglunog and Ivan Pereira, updated July 17, 2026.