Lorenzo was born in Lecco (northern Italy) in 1966. He started his mountaineering activities as a boy in his home town with the Youth Alpine Group of the Italian Alpine Club. Still very young, he joined the Ragni di Lecco (Lecco Spiders) and at the age of 25 he was already accepted as a member of the Italian Alpine Club Mountaineering Academy. In a short time he completed a series of difficult climbs in the Alps thus setting many speed records. His greatest dream was to climb the highest mountains around the world.
In 1986 he reached Cho Oyu, his first 8000 mts. peak, with an expedition of the Ragni di Lecco. In 1991 he attempted the unconquered West face of Makalu.
After two failed attempts in 1989 and 1990, in 1992 he reached the summit of Everest with an expedition of the Ev-K2-CNR project, led by Agostino Da Polenza. This climb marked an historical achievement, winning for Lorenzo the distinction of being one of the youngest climbers to reach the roof of the world.
During the winter of 1993 he successfully climbed Aconcagua with Simone Moro. In 1995 he reached the summit of Denali-McKinley in Alaska.
1996 was the year in which he could finally fulfill the top dream of his life: the summit of K2. This climb was organized by the Ragni di Lecco also with scientific purposes in celebration of the 50th anniversary of their foundation as a mountaineering group. The expedition was successful: the summit was reached on 29th July 1996. Lorenzo was also on the top of K2 at 4.30 PM; then, the tragic descent and fall.