Was Person X interviewed before Person Y? Did the detectives have Forensic Report A when they talked to Suspect B? Find that information and more right here.
What else does Forrest know about Laurie's fate?
Examine the relevant case files
Investigation Day 11 — After some unusual developments, the detectives talked to Laurie's former fiancé again about what happened with him recently and what happened to Laurie when she came back to town.
After that interview, Forrest gave an official statement regarding his knowledge of the events.