Complex sentence: He spent several years writing news and city columns for the Montreal Mirror where his articles shed light on often sensational yet little-known stories about Montreal, including the reputed Montreal demises of Veronica Lake and Maurice Duplessis.
Split into simpler sentences: He spent several years writing news and city columns for the Montreal Mirror where his articles shed light on often sensational yet little-known stories about Montreal. He delivered bombastic reports on such events as the reputed Montreal demises of Veronica Lake and Maurice Duplessis.