One of the women, identified as DSD, was the first of Worboys' victims to make a complaint to police in 2003.
She told ITV News that she felt guilty; if police had believed her, no more women would have been sexually assaulted.
More top news
Labour leader tells May Day rally his party 'stand absolutely against racism in any form'.
Video has emerged of a police car colliding with a cyclist and driving over a bike during a mass bike ride in central London.
Harlesden's James DeGale has successfully defended his IBF super middleweight title against Rogelio Medina.