Complex sentence: She and her cousin Elizabeth May Jourdain were drinking alcohol and driving, and the accident resulted in Jourdain's death and Joanne having to be committed to a nursing home in Bloomington, Minnesota.
Split into simpler sentences: She and her cousin Elizabeth May Jourdain were drinking alcohol and driving. Jourdain died in the accident and Joanne had to be admitted to a nursing home in Bloomington, Minnesota.