The assassination of John F. Kennedy started a macabre chain that continues to this day. Oswald killed Kennedy, and Jack Ruby killed Oswald; this much we do know.
What many people aren't aware of is how far it continued after that.
In 1967, while awaiting retrial for the murder of Lee Harvey Oswald, Ruby died in Parkland Hospital (the place of death of both Oswald and JFK), some say due to the negligence of the doctor overseeing him. A few years following this, that same doctor died in an auto accident while on his way home.
The driver of the car that struck him would make a full recovery, though the medical costs would bankrupt him and drive him to a life of crime. A store owner acting in self-defense would be the one to claim his life, and so on.
Few have kept full track of the chain up until now, or how far from Dallas it has actually traveled, but many believe it still continues on after this! Fewer still are sure if it started with Oswald and JFK, or if perhaps it goes further back than that... betraying some unknown transgression from President Kennedy's past.
Just be careful out there.