Police in Thessaloniki are investigating the death of a 20-year-old woman caused by drug use. Authorities believe the young woman may not have acted alone. Investigators are now looking for the person who provided the narcotics. They are analyzing phone records and witness statements to find the supplier. The death has caused shock within the local community. Police want to determine if this was part of a larger drug distribution network. The case remains open as forensic results are awaited.