J. Warner Wallace, a cold-case homicide detective, writes about why we should expect witnesses to disagree.
There are many factors that contribute to one’s perception of an event. Physical location, past experience, familiarity with a feature of the crime scene; a witness’ physical, emotional and psychological distinctives play a role in what they see and how they communicate this testimony after the fact. No two people are alike, so no two people experience an event in precisely the same way. If you’ve got three witnesses in a murder case, expect three slightly different versions of the event. Don’t panic, that’s normal. In fact, when three different witnesses tell me the exact same thing, I start to get suspicious.
He then traces out the implications of this fact (among others) on our reading of the Bible’s four gospels.