It could be the biggest unsolved crime ever, the assassination of President John F. Kennedy. Conspiracies abound, and many bring the case to New Orleans. But one author takes the investigation to new territory in the Crescent CIty.

"This is a thousand pages of information that nobody has ever presented before. And people say, when you read this, all the pieces fit together, and it redefines the whole situation," said author Edward Haslam during a book signing at the Barnes and Noble in Mandeville. Haslam has written two books on the subject, both centered around cancer research work in New Orleans. It's a complicated story, but he links the research to Lee Harvey Oswald. His assistant for much of the work is a woman who claimed to be among those conducting the cancer research and who knew Oswald.

"Oswald was assigned to be her body guard, and they were together, elbow to elbow, for four and a half months." he said during a break in the book signing.

While the Kennedy assassination has history in New Orleans, many of the key players are dead. But Haslam says the desire to know the truth will never go away as long as questions remain unanswered.

"That means something is out of kilter and people are essentially insatiable for the knowledge," he said.

Readers who stopped by to purchased the books or have Haslam sign copies they already own agree.

"I was in college at the time when Kennedy was assassinated, and I never did believe how Lee Harvey Oswald was the lone gunman," said customer Bob Phillips. As for the books, Phillips said, "Two of the most fascinating books I've ever read in my life."