Detective Mike Harmon interviewed John Ackroyd at Oregon State Penitentiary, where he was serving time for Kaye Turner's murder, during Harmon's investigation into Rachanda Pickle's disappearance.

Some names, and incorrect or unverifiable information, are redacted in places.

Read the series at The Oregonian/OregonLive: oregonlive.com/ghostsofhighway20