They reportedly helped the brigand during the abduction episode of Nagappa.
The intelligence input was as specific as it gets -- four persons, including Veerappan, are moving in an ambulance on their way to a hospital.
The sixth cassette sent by forest brigand Veerappan says he has abandoned former minister H Nagappa, whom he had abducted on August 25.
'I was invited to join the BJP, and I felt respected when they called me.'