Disappearance of Jimmy Hoffa

I personally don't think that his disappearance is such a big deal. So Jimmy was part of the Mafia and got killed (murdered? idk)....well that's what he gets for being part of the mob, he probably knew that someone was plotting to kill him because on the day of his death, July 30 1975, his wife noticed that he seemed nervous before going to the restaurant where he was suppose to meet up with other gang members to discuss his position in the International Brotherhood of Teamsters. Well, when he got to the place, no one showed up and he thought he got stood up. I believe that Chuckie O'Brien murdered Hoffa because there was evidence of Hoffa's hair in the backseat of O'Brien's car. Also, O'Brien's alibi was not confirmed, so that proves that he's guilty

This is Jimmy Hoffa...he's a sketch