Can one draw an unobstructed straight line from the Book Depository to Dealey Plaza? Yes. There's all the physics information one needs.
the Zapruder film
The Zapruder film contains no data at all that excludes Oswald.
The Zapruder film is also a Rorschach test - a very limited dataset that conspiratorial minds can map all kinds of theories to.
I shoot prairie dogs at 400 yards regularly. The film shows a low velocity bullet
from behind
and
later a V-Max from the front.