The Long Beach earthquake of 1933 took place on March 10, with a magnitude of 6.4, causing widespread damage to buildings throughout Southern California. The epicenter was offshore, southeast of Long Beach on the Newport-Inglewood Fault. An estimated fifty million dollars' worth of property damage resulted, and 120 lives were lost.
In 1926-1927, Crown Prince Gustav Adolf and Crown Princess Louise of Sweden made an international trip around the world to benefit Swedish interests, which was described as a great success, especially the trip to the USA, during which they travelled over the nation from New York to San Francisco.
This confession appears in the article, "Five Deaths Confessed. Northcott Cites Nine Murders. Walter Collins and Winslow Boys Named as Victims; Father Accused. Youth Breaks on Desert Trip; Louis Winslow's Death Laid to Nephew." Los Angeles Times, 4 Dec. 1928: pg. 1.