Lazio president Claudio Lotito has urged fans not to blame police after the death of 26-year-old Gabriele Sandri.
Sandri, a DJ and Biancocelesti fan was accidentally shot by a wayward police bullet in a motorway service station near Arezzo.
"As soon as I heard the news I tried to get as many details as I could. Lazio are a big family and the death of one fan - especially in this manner - was a tragedy," said Lotito.
"The police happened to be there and intervened, but unfortunately it seems as if an accidental shot - we still need to see the evidence and the investigation to understand if it was an accident - went off and killed the fan."
Lotito was the first to demand that Inter-Lazio be called off after news of the death came through.
"We immediately pointed out it was wrong to let the game go ahead. However, we need to explain this is not a battle between the fans and police. Sport has to be experienced with fair play and dignity for everybody.
"The squad is already at the airport returning to Rome. I immediately suspended the game out of respect for this lad, his family and the fans."