Short answers, pulled from the story.
SS-Hauptsturmführer Anton Galler commanded the German troops of the 2nd Battalion of SS Panzergrenadier Regiment 35. They were accompanied by fascists from the 36th Brigata Nera Benito Mussolini based in Lucca.
About 560 local villagers and refugees died during the killings that lasted three hours. Anna Pardini was the youngest victim at only 20 days old when she died.
A trial began before a military court in La Spezia in July 2004. The court found all accused guilty and sentenced them to life imprisonment in absentia on the 22nd of June 2005.
Extradition requests from Italy were rejected by German authorities who refused to hand over the suspects. Prosecutors required evidence showing exactly how each defendant participated in the massacre rather than just belonging to a Waffen-SS unit.
James McBride wrote the novel Miracle at St. Anna and Spike Lee directed a film adaptation titled Miracle at St. Anna about the events. The National Park of Peace which serves as both memorial site and educational center was founded in 2000.