Therefore, the store owner had the opportunity to clean up potentially incriminating evidence.[1] Initial Greek media reports said that Kostopoulos was a drug addict who was committing an armed robbery of the jewelry shop. However, a forensic analysis found no traces of drugs in his system and his fingerprints were not on any of the knives present at the scene of the crime. The coroner found that he had died of multiple injuries especially to his head.[5] Kostopoulos' family commissioned the UK-based research center Forensic Architecture to investigate his death.