Video report by ITV News Anglia's Malcolm Robertson.
More than 20 calls, including potential names of the suspects, have been made to police following a Crimewacth appeal over the attempted abduction of a serviceman at RAF Marham.
The victim, who's in his 20s, was approached by two men "of middle Eastern appearance" while he was out jogging on Squires Hill in July.
He was then threatened with a knife before the men got away in a car, believed to be a dark coloured people carrier.
In a reconstruction on Crimewatch last night, the married serviceman said was fighting for his life and that he might never see his family again as he escaped from his attackers.
Police say they've received a number of calls regarding the e-fit images, including names of the suspects too.
They are continuing to appeal for anyone who can identify the vehicles seen in the CCTV image from a nearby shop.