Complex sentence: He then moved to Florida, where he tried to start up a financial company before the market downturn pushed him out of the business in 2001, and, in the wake of the September 11 attacks, Bales enlisted in the Army.
Split into simpler sentences: He then moved to Florida, where he tried to start up a financial company. The market downturn pushed Bales out of the business in 2001, and, in the wake of the September 11 attacks, he enlisted in the Army.