Tonight, can you help to find the murderer of Lionel Webb, an estate agent who was shot dead in his London office? In Middlesbrough, neighbours took on raiders as they robbed a jewellery shop. A taxi driver then gave chase to the car in which the robbers sped away. He didn't catch them but they left behind several clues to their identity. And in Tunbridge Wells police are on the trail of a man who tied up a courting couple at gunpoint and raped the woman. You could help to catch him.