Romanos, who was a key witness in the trial of the murder of Alexis Grigoropoulos, the teenager who was shot dead by a policeman in December 2008, reportedly used a false identity card, under the name Constantinos Giakoumopoulos, to rent out a second apartment in Halandri, according to police. That apartment was searched by police late on Sunday night, according to sources who said the property bore signs of a break-in, possibly by members of the group attempting to destroy evidence.