When historians call Lee Harvey Oswald "enigmatic," they're severely underplaying just how mysterious a dude he was. There's a lot we don't know about the 20th century's most infamous assassin. We don't know why he did it. And we sure as heck don't know why he spent the weeks before the assassination hanging out in Mexico City. Mexico City in the '60s was to Cold War spies what Miami beach is to spring break bros. As Professor T. Jeremy Gunn put it to NPR, the city was "the spy capital of the Western hemisphere." Cuban agents, Soviet moles, and CIA operatives all rubbed shoulders. That Oswald was among them raises all sorts of weird questions.

We do know Oswald partly used his time in Mexico to try and secure a Soviet visa. We don't know why the records of this are all screwed up. The day he visited the Soviet embassy just happened to be the day the CIA's camera broke, so we have no pictures. We once had a recording of a tapped phone call from a guy claiming to be Oswald, but J. Edgar Hoover decided it wasn't Oswald's voice so the tape vanished.

That's before we get onto the random guys Oswald was with. According to Politico, CIA informers saw Oswald with two young Americans at a party in the city. We still haven't established their identities. All we know is they spent a few days hanging out with a soon-to-be presidential assassin and then vanished forever.