JFK Murder Solved, See For Yourself

The smoke has been caused by some explosive reaction, such as the detonation of a firearm cartridge. Such smoke remains where the gun is; it does not travel with the bullet. The fact that this smoke appears in the sequence at the same time as the fatal injury, and that it emanates from the left-hand-side of JFK's head, where Jackie Kennedy has positioned herself, means that President Kennedy was killed by his wife. See it all here.