While moving the family's possessions to 
Mayne Island, Marks and his eldest daughter, 
Caroline Harvey, took shelter from a squall at 
Saturna Island. When camping on the beach, the pair were murdered and had many of their possessions
                     stolen. Their damaged boat was discovered several days later by 
Mayer who then reported them missing to British authorities in 
Victoria.A Lamalcha man, 
Ul-wahn-uck was later tried and hung for the murders.