Unfortunately, not a happy ending. They have located the plane today using sonar, but have not recovered it nor the body of the pilot.
From CBC:
VANCOUVER - Renowned Canadian painter Toni Onley has died in a plane crash. He was 76 years old.
Onley has been identified as the pilot of a float plane that crashed in the Fraser River near Vancouver on Sunday.
According to witnesses, Onley was practicing landings and take-offs in his LA4 Buccaneer amphibious plane before it went down.
The Transportation Safety Board is investigating the cause of the accident.
Known for his watercolour landscapes, Onley often flew to remote locations around the country to paint. He would also fly around British Columbia to teach art classes.
An Officer of the Order of Canada, Onley survived the crash of another plane several years ago.
His work was featured in galleries around the world, including the Tate Gallery in London, the National Gallery of Canada in Ottawa, and the Library of Congress in Washington.