Kenneth Shanks was a resident of Hexen Bridge and a criminal. He was known as the drugs and porn king of Liverpool.
The Seventh Doctor travelled back in time to visit him as a boy, trying to find out more about the problems in Hexen Bridge. As an adult, Shanks contaminated Liverpool's water supply with mind altering chemicals for Matthew Hatch. While fighting Ian Denman to avoid arrest, he fell into a water reservoir and drowned. (PROSE: The Hollow Men)