Complex sentence: However, in 1996 when a bank executive at the Long-Term Credit Bank of Japan noticed an irregularity on one of the forged documents and contacted Phillip Morris and the FBI, the scheme began to unravel.
Split into simpler sentences: However, in 1996 a bank executive at the Long-Term Credit Bank of Japan noticed an irregularity on one of the forged documents. After contacted Phillip Morris and the FBI, the scheme began to unravel.