Soccer Fan Killed in Italy
The two pieces differ only slightly, Reuters being more in-depth and longer. I'll examine it through the lead, chronology of facts, and end-quotes
In the lead the Reuters story does not use the Guardian's language of "accidental," which the Guardian also does not attribute. It also brings up that the incident inspired stadium violence in four other cities. The Guardian then follows with a quote from police backing up that it was accidental. It follows with police version of the story, who the victim was, then touches on the reaction of the victim's family before ending with a description of soccer violence in Italy.
The Reuters story goes about the same direction but provides more examination of the families' reaction and descriptions of what the conflicts with authorities actually looked like. A powerful example is the Italians in this guys native city chanting, "assesino." I think we all understand what that means.
All in all the Reuters story seemed more true to life than the Guardian story.