On a hot August night in 1990, Rickie Tregaskis broke into a home through a bathroom window, brutally attacked Emma Anton, and killed Barbara Griffin with a single stab wound to the heart as she ran to her aunt's rescue.

Years later, he boasted that he had got away with murder — and he had, until now.

Express Deputy Editor Fiona Potigny spoke to civilian investigator Lee Turner, whose cold case review led to Tregaskis's conviction 32 years later.