Daily Record next week.An ex-prison governor turned criminology professor, David has spent 40 years getting into the minds of serial killers, murderers, rapists and sex offenders including Dennis Nilsen and Suffolk strangler Steve Wright.He’s looked some of the most terrifying criminals ever locked up in the eye but one encounter with a serial rapist left him shaken.David, 63, said while working at Woodhill prison in Milton Keynes, a sex offender asked to see him in his office.He said: “He had