Any good websites about who killed JFK??

These look like some good leads:

http://mcadams.posc.mu.edu/bestof.htm

http://mcadams.posc.mu.edu/home.htm

There is all sortsa speculation and opinion out there relating to the JFK assassination. There is one outstanding, readilly accessible, authoritative, definitive websource for accurate, relevant information pertaining to the Kennedy assassination, that being the website National Archives and Records Administration: JFK Assassination Records . More actual information is to be had there than would fit on any hard drive likely to be found in a home computer. If considered in terms of paper, it would amount to several hundred cubic yards of the stuff. Among the many, many thousands of documents available or linked to there is an unexpurgated online version of the entire million-word-plus text of the Warren Commision Report

http://www.assassinationresearch.com/zfilm/

http://ourworld.cs.com/mikegriffith1/id35.htm

Couple here I found useful, without knowing exactly what you want it's difficult to advise.

Since I met the fellow who has this website over boiled crawfish at an LSU alumni function, I feel like his conspiracy theory merits a little air.

In this interview with E. Howard Hunt, he reacts visibly when questioned about David A. Phillips, one of the principals Zack Shelton references above.