Complex sentence: Siddiki, originally from Canada, was a marketing consultant executive at a financial services company before a bout with shingles in the 1980s, which he says sparked his conversion from Islam to Christianity.
Split into simpler sentences: Siddiki, originally from Canada, was a marketing consultant executive at a financial services company before a bout with shingles in the 1980s. In which he says sparked his conversion from Islam to Christianity.