Complex sentence: The case stagnated until December 14,1929, when the Berrien County, Michigan Sheriff's Department raided the St. Joseph, Michigan bungalow of "Frederick Dane", the registered owner of a vehicle driven by Fred "Killer" Burke.
Split into simpler sentences: The case stagnated until December 14,1929, when the Berrien County, Michigan Sheriff's Department raided the St. Joseph, Michigan bungalow of "Frederick Dane". Dane had been the registered owner of a vehicle driven by Fred "Killer" Burke.