Prosecutors agree not to ask for Chesser to serve time in `` supermax '' prison . The internet posting features a graphic photograph of van Gogh with his throat cut and a dagger in his chest . Zachary Chesser 's lawyer says he has renounced violent jihad . Chesser could receive at least 20 years in prison at at least 20 years sentencing . Judge says defense agrees to a sentence of February 25 .
Prosecutors agree not to ask for Chesser to serve time in `` supermax '' prison . Zachary Chesser 's lawyer says he has renounced violent jihad . Chesser could receive at least 20 years in prison at at least 20 years sentencing . Judge says defense agrees to a sentence of February 25 .