Why did prosecutors close their inquiry into a new Garlasco murder suspect?

Public prosecutors in Pavia have concluded an eighteen-month supplementary investigation into Andrea Sempio for the murder of Chiara Poggi in Garlasco, while scrutinizing raw forensic records originally handled by the scientific police unit in Parma.

Addressing discrepancies where victim genetic material vanished on subsequent tests, former forensics officer Alessandro Coli described widespread laboratory doubts, testifying: The fact that DNA came out of one sample and then nothing came out of subsequent repeated samples was an anomalous thing.

To link Sempio directly to the crime scene, Carabinieri investigators claim that a cellar wall impression matches 15 minutiae from his right hand, although his defense attorneys counter that the plaster mark lacks sufficient identifiable features for any individual attribution.