Kọ itẹsiwaju fun paragirafi yii - Wilber ni onkọwe ti iwe ti o ta julọ "Rawhide Down: The Near Assassination of Ronald Reagan" (Oṣù Kẹta 15, 2011, Henry Holt) nipa igbiyanju lati pa Ronald Reagan ni ọdun 1981
ó ṣe tán. Iwe keji rẹ, "Oṣu ti o dara fun ipaniyan: Itan inu ti Ẹgbẹ ipaniyan", ni a tẹjade ni Okudu 2016.