 One witness, who was on the third floor of a nearby building, told police that he saw two men "wearing suits and of Mediterranean appearance" appear on the balcony moments after Marwan's fall, look down, and then return inside the apartment.Police are also reported to have lost Marwan's shoes, which could hold clues on whether or not Marwan jumped from the balcony.Marwan is the fourth Egyptian of note to die in London in a similar manner.