The case of Green River killer Gary Leon Ridgeway who was arrested on 30 November 2001 after 19 years of police searches. The offender is recognised as the most prolific murderer in US history, having slayed at least 48 women. A warrant was granted to search his property in 1987 but no evidence was found at the time, it was only after a breakthrough in DNA technology in 1999 that the case was reopened
