It was for US Navy Petty officer Damon Crooks...stabbed to death in Halifax (2006).
That is indeed a shame. Still, crime happens everywhere. Canadians have been killed while in the US, or any other country, for that matter.
My father was Canadian navy and had nothing but wonderful treatment in American ports. He particularly loved to visit Buffalo, NY, or more properly Niagara Falls, NY. As a Canadian sailor came down the gangway there would be a herd of taxis driven by black folks. They would ask "What time do you have to be back?". They would then take Canadian sailors like my father to THEIR part of town, showing them a great time and buying them innumerable beers. No matter how drunk the Canadian sailor got, he would be gotten back to his ship on time!
This treatment stemmed from over a century past, with Canada being the end of the Underground Railroad to get slaves to Canada and freedom. Those people never forgot! This was the 50's and I don't know if the custom continues today but my father thoroughly enjoyed himself and deeply appreciated the friendly, generous treatment.