He later returned to Europe using a false passport travelling the migrant route from Syria to Turkey to Leros , Greece where he presented himself on 20 September 2015 as '' ' Naïm Al Hamed ' '' ( identified as a Syrian national born on 1 January 1988 and originating from Hama , Syria according to the falsified papers ) . Under this guise as Naïm Al Hamed , he continued to Europe residing in Belgium . The beginning of October 2015 , Krayem allegedly met Salah Abdeslam in Ulm , Germany to discuss possible cooperation in terrorist attacks . Abdeslam was one of the Belgian suspected terrorists involved 13 November 2015 Paris attacks . Fleeing the scene , Abdeslam later went on hiding in Molenbeek , Belgium where he was eventually arrested on 18 March 2016
Paris attacks
November 2015 Paris attacks
Osama Krayem