The BBC are showing this documentary on Wednesday's Omnibus at 10:35.
This is what they have to say.
2235 Omnibus: Patricia Cornwell - Stalking the Ripper, BBC One
Bestselling crime writer Patricia Cornwell has set herself her toughest assignment yet – discovering the true identity of Jack the Ripper, widely seen as the world’s first serial killer. Cornwell applies 21st-century scientific methods to these century-old crimes and is now convinced she knows the Ripper’s identity. But how will her evidence be received? Omnibus finds out. Contains scenes of a graphic nature.
Could be worth a look and maybe videotaping!