Buffone was a member of the Bears from 1966-79, playing under legendary coach George Halas early in his career and overlapping with Walter Payton toward the end of his career. He recorded 1,257 tackles and 24 interceptions.
Buffone regularly hosted a radio show on the local Chicago CBS affiliate, discussing Bears football with former Chicago defensive end Ed O'Bradovich.
The Bears expressed condolences to Buffone's family, and several former Bears players remembered him on Twitter.
- Alex Putterman