Complex sentence: This lineup was short-lived, however, as in 1999 Joo moved back to his home country of South Korea, The year after both Rupert Handley and Murray Boyton followed him, leaving Adam Scanlon on his own.
Split into simpler sentences: This lineup was short-lived, however, as in 1999 Joo moved back to his home country of South Korea. In 2001 both Rupert Handley and Murray Boyton left the band, leaving Adam Scanlon on his own.