Acting upon this intelligence, the German secret police moved in to arrest the PFLP-GC cell on October 26, raiding 14 apartments and arresting 17 men, fearing that to keep them under surveillance much longer was to risk losing control of the situation. Two cell members are known to have escaped arrest, including Abu Elias, a resident of Sweden who, according to Prime Time Live (ABC News November 1989), was an expert in bombs sent to Germany to check on Khreesat's devices because of suspicions raised by Ahmed Jibril. Four IEDs were recovered, but Khreesat stated later that a fifth device had been taken away by Dalkamoni before the raid, and was never recovered. The link to PA 103 was further strengthened when Khreesat told investigators that, before joining the cell in Germany, he had bought five Toshiba Bombeat cassette radios from a smugglers' village in Syria close to the border with Lebanon, and made practice IEDs out of them in Jibril's training camp away. The bombs were inspected by Abu Elias, who declared them to be good work. What became of these devices is not known. Some journalists such as Private Eyes Paul Foot and a PA 103 relative, Dr Jim Swire, believed that it was too stark a coincidence for a Toshiba cassette radio IED to have downed PA 103 just eight weeks after the arrest of the PFLP-GC cell in Frankfurt. Indeed, Scottish police actually wrote up an arrest warrant for Marwan Khreesat in the spring of 1989, but were persuaded by the FBI not to issue it because of his value as an intelligence source. In the following spring, King Hussein of Jordan arranged for Khreesat to be interviewed by FBI agent, Edward Marshman, and the former head of the FBI's forensic lab, Thomas Thurman, to whom he described in detail the bombs he had built. In the 1994 documentary film Maltese Double Cross, the author David Yallop speculated that Libyan agents and agents paid by Iran may have worked on the bombing together; or, that one group handed the job over to a second group upon the arrest of the PFLP-GC cell members. The former CIA head of counter-terrorism, Vincent Cannistraro, who previously worked on the PA 103 investigation, was interviewed in the film and said he believed the PFLP-GC planned the attack at the behest of the Iranian government, then sub-contracted it to Libyan intelligence