World’s End murder trial: Meet the DNA expert and unlikely hero whose work was pivotal in catching killer Angus Sinclair

KnibbbIT WAS a small section cut from Helen Eadie’s raincoat that provided the “eureka” moment police had so desperately sought for over 30 years.
Forensic scientist Lester Knibb had only been qualified for a year when he was given samples from the scene of the murders.