And yet, from a rested position, shooting at a stationary target about 100' (not yards), using the exact same rifle, he missed General Walker.
Amazing the shot missed Gen Walker. I never knew this stuff.
Whoops!
Before JFK, Lee Harvey Oswald Tried to Assassinate a Former Army General
Lee attempted a politically motivated assassination in the first place. That is a admission he tried to kill someone before JFK and made him a more reasonable suspect for killing JFK afterwards.
He staked out Walker's home, and tried to shoot him at night from 40 yards. The round first hit the window frame and glass. Bullets fired at a angle through glass deflect. Good plan, bad execution for a variable not considered.
It was seven months between the attempted assassination of Walker and JFK. That is time to learn from mistakes and practice. The JFK shooting was in the afternoon, not night, and was not obstructed by any barriers, firing three rounds, not one.
Oswald was above average, not Carlos Hathcock. One shot one kill is an ideal and slogan, not a operational reality. Most rounds fired in combat miss, even snipers miss. Documentaries and the history channel only bring up the impressive shots, not the mundane misses.
So he missed once, learned from it, and did not make the same mistake again, other than not getting away with it the second time.