Actually if you'd bothered to look, Wikepedia has quite a bit to say about the Kennedy assassination. It reports the findings of the Warren Commission as well as the House Select Committee on Assassinations. But it also chronicles many of the other theories.
Granted Wikipedia is not the most extensive research source, but was a quick source to point out the inconsistencies of you comparing the profiteering of Prescott Bush, which bordered on treason, to Joe Kennedy's financial gains, some of which may have been made illegal over a period of time, not related to the war.
A short reference included in the Kennedy bio........."President Kennedy was assassinated in Dallas, Texas, on Friday, November 22, 1963 at 12:30 pm CST while on a political trip through Texas. Lee Harvey Oswald was charged at 7:00 pm for killing a Dallas policeman by "murder with malice", and also charged at 11:30 pm for the murder of the president (there being no charge of "assassination" of a president at that time). Oswald was fatally shot less than two days later in the basement of the Dallas police station by Jack Ruby. Five days after Oswald was killed, the new president, Lyndon B. Johnson, created the Warren Commission, chaired by Chief Justice Earl Warren, to investigate the assassination. In the 1970s, both the Warren Commission and the House Select Committee on Assassinations (HSCA) concluded that Oswald was the assassin. The HSCA also concluded that Oswald was likely part of a conspiracy to kill the president, although the committee did not uncover sufficient evidence to identify the other member, or members, of the conspiracy.
Critics have proposed a number of Kennedy assassination theories which contradict the various theories on exactly how the assassination took place that have been proposed by the government's official reports. There is no consensus among government investigations, let alone amongst their critics, on the number of bullets fired at the president, the direction from which all the bullets were fired, and which of the bullets struck the president, and Governor John Connally who was also wounded in the attack.
Lee Harvey Oswald denied shooting anyone, and claimed he was being set up as a "patsy". He claimed the photograph of him holding the alleged murder weapon was a fabrication, and that he would prove his face was pasted on the body of someone else holding the rifle. However, Oswald himself was then murdered by Jack Ruby, while in police custody, and so there was never a trial to determine his guilt or innocence. Some critics contend that Oswald was not involved at all and that he was framed.
Among the most widely posited conspirators in the assassination are the CIA, the mafia, the KGB, and Fidel Castro, Vice-President Lyndon Baines Johnson, and some sort of military-industrial complex led by U.S. Army Generals."
http://en.wikipedia.org/wiki/John_F._KennedyMore extensive discussion under Kennedy Assassination....... "An official investigation by the Warren Commission was conducted over a 10 month period and published its report in September 1964, and concluded that Lee Harvey Oswald, an employee of the Texas School Book Depository in Dealey Plaza, was the assassin. A later official investigation by the House Select Committee on Assassinations (HSCA) was conducted from 1976 to 1979, and concluded that Lee Harvey Oswald probably acted with at least one other person. The assassination is still the subject of widespread speculation, and has spawned a number of Kennedy assassination theories."
more......
http://en.wikipedia.org/wiki/John_F._Kennedy_assassination