The 27-year-old Syrian, suspected of being a member of the Islamic State terrorist organization, is due to testify to an Athenian judge on Monday, following his arrest in the Greek capital last Thursday.
The unnamed suspect arrived in Greece in March 2018 and was with his wife and four children at the Eleonas migrant camp in Athens. There, he was watched for a while, allegedly appearing in a 2014 video posted on social media depicting Islamic State militants and their pursuit of a group of men before a mass execution.
The man reportedly admitted to having appeared in the video, but told investigators in Athens that he had not been involved in the executions.
There are two plausible scenarios regarding the reasons that led to his arrest last week. The first is that he had some kind of altercation with other residents in the Eleonas camp and was detained by the police before it could escalate into serious violence. The second concerns the posting of a man on Facebook, allegedly inciting camp residents to burn him.
His appearance in court on Monday is expected to shed more light on the case.