The many plots to kill JFK

In December 1962 according to CIA agent Richard Nagell, there was a plot to put a bomb near the speaker's podium of the Orange Bowl when Kennedy was addressing the prisoners released from the Bay of Pigs prisoner exchange. He had already pissed off the wrong people. And he seemingly had many factions wanting to end this man's life.
Oswald got involved in the third plot, but little did he know that he was simply the patsy.
Nagell saw the writing on the wall and saw that he might become a patsy himself and sent a letter to then FBI director J Edgar Hoover warning him of the many assassination plots against a sitting President. Hoover claimed he never received this letter and did absolutely nothing in response.

Richard Nagell then proceeded to get himself arrested in front of an El Paso bank in order to protect himself from becoming exactly what Oswald would go on to be.
Three weeks before the assassination, Nagell told a cop that he wouldn't want to be in Dallas right now.