Five people were arrested in 2008 but two, including a former detective accused of perverting the course of justice, were discharged after a string of supergrasses were discredited.
BBC: Private detective axe murder case collapses 24 years on
2.
Meanwhile, the war against the Mafia has suffered a major blow: Mr Andreotti's acquittal (see article) has probably put paid to the use of pentiti, supergrasses, to gain convictions.