"I don't really know, but it hardly seems like good practise to pick up a bullet"
Of course it's not but that was no ordinary crime scene. There were thousands of people about, what would happen to the vehicle etc., etc? There's no way the crime scene could be secured in such a short time. And JFK had to be rushed to hospital. Nothing was certain.
He saw the bullet as evidence and on the spur of the moment secured it. After that he was likely in shock and thus his actions were more that of an automaton.
Of course it's not but that was no ordinary crime scene. There were thousands of people about, what would happen to the vehicle etc., etc? There's no way the crime scene could be secured in such a short time. And JFK had to be rushed to hospital. Nothing was certain.
He saw the bullet as evidence and on the spur of the moment secured it. After that he was likely in shock and thus his actions were more that of an automaton.