It’s November 22, 1963. You arrived early at Dealey Plaza in Dallas, Texas for the motorcade. It’s 12:00 PM, and you sit on the grassy knoll, looking ahead in anticipation. You see police motorcycles driving by, they seem to be checking something.

The Texas Schoolbook Depository looms over Dealey Plaza, and you don’t seem to notice anything wrong. Although, what could go wrong on this perfect day?