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 do the YCSD notes from the days of the murders show?
Investigation Day 2 — 1958 investigators on the Izard homicide case documented their efforts to track down potential witnesses and suspects on the day of the murders.
Do they include insights we haven't seen in official transcripts and other case documents?