Short answers, pulled from the story.
The Sant'Anna di Stazzema massacre was the killing of about 560 villagers and refugees by Waffen-SS troops and Italian Black Brigades in a hill village in Tuscany, Italy, on the 12th of August 1944. The victims included at least 107 children and eight pregnant women. Italy's highest courts defined the killings as voluntary and organized acts of terrorism.
Troops from the 2nd Battalion of SS Panzergrenadier Regiment 35 of the 16th SS Panzergrenadier Division Reichsführer-SS carried out the massacre, commanded by SS-Hauptsturmführer Anton Galler. Italian fascist fighters from the Black Brigades accompanied them, dressed in German uniforms.
The youngest victim was Anna Pardini, who was twenty days old at the time of the massacre on the 12th of August 1944.
Ten former Waffen-SS officers and NCOs were tried by a military court in La Spezia, Italy, in July 2004. On the 22nd of June 2005, all ten were found guilty and sentenced in absentia to life imprisonment. Germany rejected Italy's extradition requests, so none of the convicted men served their sentences.
In 2012, German prosecutors shelved their investigation into seventeen unnamed former SS soldiers from the unit, eight of whom were still alive. The prosecutors stated that membership in the unit alone could not substitute for proof of individual guilt.
The Charnel House Monument and the Historical Museum of Resistance were both built near the village church after the war. The National Park of Peace, founded in 2000, serves as the main memorial site. A trail from the church to the park features Stations of the Cross depicting scenes from the massacre.