Double rapist Frank Watson jailed for Hertfordshire attacks
A man has been jailed for 16 years for two rapes carried out in the 1990s after being caught by DNA evidence.
Frank Watson, 47, of Gibbon Close, Borehamwood, Hertfordshire, was arrested in April for possessing 136 indecent images, some of children.
Police then found the DNA link to two cold-case rapes from 1991 and 1997.
Watson, who was convicted of the rapes at the Old Bailey in September, was told by the judge: "You have not shown a shred of remorse for your actions."
Recorder Brian O'Neill QC said: "You caused two women to relive their ordeals from 20 years ago again.
"These were totally dreadful crimes and the only sentence to pass upon you is a very lengthy sentence."
The judge handed him two concurrent 16-year sentences for rape, and one year, also to run concurrently, for nine counts of possessing indecent images.
On 13 September 1991, Watson grabbed a 22-year-old woman as she was walking home in Potters Bar.
He dragged her down, threatened to stab her and raped her.
The judge said the victim and her family were "devastated" and that the attack "changed her life forever".
Six years later, Watson attacked an 18-year-old woman in Aberford Park, Borehamwood.
The Metropolitan Police Service said it was able to catch Watson thanks to advances in forensic technology since the rapes.