Ongoing investigation into the death of Giorgos Mazonakis at a Kolonaki clinic

Authorities conducted a follow-up investigation on October 15, 2026, at a private medical practice on Karneadou Street in Kolonaki, where the singer Giorgos Mazonakis passed away on September 9, 2026, during a plasmapheresis procedure. Led by a prosecutor and accompanied by police and the defense attorneys of the two incarcerated doctors, Ilias Theodoropoulos and Ioanna Gaka, investigators searched the premises for substances linked to sedation or intoxication. Two vials, suspected to contain an antidote to midazolam, were seized for further analysis to determine if their usage could have altered the outcome of the incident.

The investigation has expanded to include a bank safety deposit box associated with the two physicians, now under scrutiny by the Anti-Money Laundering Authority. Further evidence emerging from the case includes claims that one of the doctors performed internet searches regarding the case following the death, as well as recovered internal staff messages. While defense lawyers claim the search was merely part of the legal process to vacate the space, authorities continue to compile evidence for the ongoing judicial inquiry. The results of forensic toxicology and the analysis of the seized vials are currently pending.