Complex sentence: Kerrigan then chose not to attend the closing ceremonies at the Olympics; her agent claimed this was because Norwegian security had advised her not to do so due to death threats that had been made against her, but this was later denied.
Split into simpler sentences: Kerrigan then chose not to attend the closing ceremonies at the Olympics. Her agent claimed this was because Norwegian security advised her not to do so because death threats that had been made against her, but this was later denied.