He was the only son of Danish immigrant John Malling Sorensen,[1] a butcher.
He then worked as a journalist for the Regina Leader-Post, Swift Current Sun,[5] and The Toronto Star beginning in 1968.
[6] In 1978, his one-hour documentary on Gerald Bull and his role in the illegal export of artillery shells from Canada to South Africa during apartheid brought wide acclaim.
In another of many sensational stories, the Federal Minister responsible for Fisheries, John Fraser, resigned after Malling revealed he had overruled his own health inspectors and allowed the sale of tainted StarKist brand of tuna based on the suggestion by a non-government corporation.
[7] In 1990, he moved to CTV to host W5, which during this period was known as W5 with Eric Malling.