Marcello Lorenzini was born in Caprino Veronese and, like many others, arrived in Sesto San Giovanni thanks to the city's growing steel industry, which drew labor from all over Italy, especially from areas facing economic crisis after the First World War. He found work at Breda (Section I), establishing himself as a specialized turner, a highly skilled job at the time.

He participated in the great strikes of March 1944, which were followed by a massive wave of deportations: the Nazi occupiers' response to those who dared to halt production for the Reich. Many of his Breda colleagues were with him at the San Fedele prison and later at San Vittore. On March 14, in the German wing, the Streikertransport (strikers' transport) was compiled; its list contains the names of many citizens of Sesto whom we are commemorating with this year's Stolpersteine (stumbling stones). All the arrested strikers were then gathered at the Umberto I barracks in Bergamo, where a convoy of 566 men and 7 women was formed for deportation to Germany.

Arriving at Mauthausen on March 20, 1944, Marcello was registered with the number 59075 and marked as Schutzhaft, Red Triangle, indicating those deported for security reasons.

After only a few days, he was sent to Gusen, assigned to an activity that has not been possible to identify. We know from historical reconstruction that during those months, many deportees were put to work constructing tunnels carved into the rock to house war production in areas protected from Allied bombing, as well as building new barracks. Many in this group were given this traumatic assignment, earning Gusen the name "cemetery of the Italians" due to the high number of deaths.

Marcello died after less than a month in Gusen, on April 20, 1944, from septicemia, possibly following an injury.