Officers from Greece’s “FBI” left a private clinic on Karneadou Street in Kolonaki shortly before 4 p.m. carrying four large folders and a bag filled with evidence. The clinic is where Giorgos Mazonakis lost his life.

The material collected was placed in Greek police vehicles waiting outside the building and is expected to be transferred to the relevant departments and laboratories for examination as part of an investigation into the clinic’s operations. Officers conducted a thorough search of the premises operated and owned by Ilias Theodoropoulos and Ioanna Gaka, where Giorgos Mazonakis suffered cardiac arrest one day earlier.

A key focus of the investigation is to determine whether the clinic had all the required licences, whether its equipment met legal requirements, and whether any violations occurred that could potentially lead to criminal charges.

An officer from the Directorate of Criminal Investigations also attended the clinic.

Two plasmapheresis machines found at the clinic

During the search, officers thoroughly examined the medical office and found two plasmapheresis machines. Authorities reportedly believe that the owners possessed the machines legally.

Both doctors who manage and own the clinic were present during the search. In the presence of a prosecutor, police officers and members of Greece’s “FBI,” they were asked to show investigators all areas of the medical facility.

As part of the investigation, Greek police officers also contacted a specialist hematologist, who provided them with information about how the plasmapheresis procedure is performed.

Doctor’s testimony about Giorgos Mazonakis’ final moments

Ioanna Gaka, a doctor at the Stem Cell clinic, described the final moments of Giorgos Mazonakis’ life inside the facility in testimony to police.

According to her account, Mazonakis initially underwent a medical examination at the clinic on Tuesday afternoon, which showed that his body was under considerable strain. During the conversation that followed, she said, the singer was also having difficulty speaking.

Gaka said that during his Tuesday visit, Mazonakis asked what could be done immediately, as he was scheduled to attend an event in the following days and wanted to improve his health quickly. According to the doctor, she suggested a blood-cleansing procedure using a specialised machine, telling him that the treatment had no side effects or contraindications. She said he agreed to proceed.

The following day, Wednesday, Mazonakis returned to the clinic in Kolonaki. According to Gaka’s testimony, she found that he had not slept and again noticed problems with his speech, saying that he “was not speaking properly.”

Describing the procedure, Gaka told police that an intravenous catheter was inserted into Mazonakis’ right arm, followed by an attempt to insert a second catheter into his left arm, which she said was required for the procedure.

The doctor further claimed that, up to that point, the 54-year-old singer’s vital signs were normal, with no problems detected in his blood pressure, oxygen levels or body temperature. However, she said that while attempting to insert the second catheter, she noticed a sudden deterioration in his condition, including a drop in blood pressure and oxygen levels.

According to the doctor, the procedure was immediately stopped. She said she called her husband, and the two began performing cardiopulmonary resuscitation (CPR) on the singer while an ambulance was called. Resuscitation efforts continued until emergency medical personnel arrived.

In her testimony, the doctor also claimed that Mazonakis was still alive when he left the clinic in Kolonaki. She further maintained that all the equipment at the facility is certified and said she would provide investigators with the necessary certificates.