Investigations continue into the murder of Marco Mameli, stabbed to death after the Carnival celebration in Bari Sardo.
Dozens of people - friends, relatives, people who participated in the parade - were interrogated at the Tortolì Police Station , to try to gather clues and elements useful for identifying the killer of the 22-year-old from Ilbono.
In the last few hours, the young man's girlfriend had made an appeal on social media: "Whoever knows, speak up."











