A Jackson County grand jury indicted Casterline on a charge of first-degree murder. A trial was held on March 28, 1860, and he was sentenced to die. Jacksonville citizens petitioned Oregon Gov. John Whiteaker (cq) to commute the sentence, but he refused. On May 11, 1860, Sheriff Legrand J. C. Duncan marched Casterline to the waiting gallows. After Casterline confessed to a life of sin and abuse of spirituous drink, the sheriff put the rope around Casterline’s neck and pulled the pin out of the trap door.
Source: Goeres-Gardner, Diane L. Necktie Parties: A History of Legal Executions in Oregon, 1851-1905. Caldwell, Idaho: Caxton Press, 2005.