A jury in Virginia has convicted an iconic figure in the civil rights movement of incest for having sex with his teenage daughter 15 years ago.

The Rev. James L. Bevel was a top lieutenant to Martin Luther King Jr. He also is credited with helping conceive and organize the Million Man March.

Bevel faces up to 20 years in prison when he is sentenced.

The four-day trial included bizarre testimony about Bevel’s philosophies for eradicating lust, and parents’ duty to “sexually orient” their children.