10/22/2014 12:43 EDT

Michael Coren, Sun News Host, Promotes Book Shortly After Ottawa Shooting

Sun News host Michael Coren sparked controversy Wednesday after promoting his book on Twitter shortly after a Canadian soldier was shot at the National War Memorial in Ottawa.

In a tweet that has since been deleted, Coren said he knew there would be "more attacks," and linked to an Amazon page for his book, "Hatred: Islam's War on Christianity."

Coren later claimed the link to Amazon was automatically attached to his tweet and apologized.

Nathan Cirillo, a reservist from Hamilton, Ont., later died from his injuries.

The reaction on Twitter was scathing, particularly from journalist Peter Henderson who was among the first to break the news of the attack in Ottawa and shared a photo of the soldier receiving CPR.

Henderson did not pull any punches when it came to Coren's ill-timed tweet.

A little later, Henderson again called out Coren.

Liberal speechwriter Colin Horgan also expressed disgust.

Coren later apologized but reiterated he wished he had been wrong about more attacks.

On Wednesday morning, a gunman opened fire at the memorial, wounding a soldier, before moving to nearby Parliament Hill where he was reportedly shot by Kevin Vickers, the sergeant-at-arms for the House of Commons, after wounding a security guard.

The Hill remains on lockdown amid reports there may be multiple shooters.

The attack comes just two days after two Canadian soldiers were run over — one of them killed — in Quebec by a man with jihadist sympathies.

A number of MPs also took to Twitter to share chilling updates Wednesday morning.

Photo gallery MPs Tweet During Shooting See Gallery

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With files from The Canadian Press