"Few have disputed the fact that three used cartridge cases were found near the famous sixth floor window, and one live round in the breech of the rifle. Rarely, however, has anyone raised the troublesome fact that ONLY those were found - anywhere."
Summers points out that not a single spare bullet was found on Oswald, at his rooming house or his belongings at the house where he was staying with his wife.
He also says that investigators could find only two stores in the Dallas area where someone could buy ammunition for the Mannlicher-Carcano rifle that Oswald supposedly used to shoot Kennedy. Also, they discovered, that such ammunition is sold in hundreds or dozens of bullets, not by the handful.
'The conventional account of the assassination thus assumes improbably that Oswald had previously exhausted his supply of ammunition - all save the four bullets accounted for at the Book Depository," Summers writes. "It suggests too that he set off to shoot the President of the United States confident that he would use only those bullets that day."
It's kinda hard not to at least speculate that they might have been planted there to frame Oswald, huh?