One of the more controversial topics involving Nikola Tesla is what became of many of his technical and scientific papers after he died in 1943. Just before his death at the height of World War II, he claimed that he had perfected his so-called death beam." So it was natural that the FBI and other U.S. Government agencies would be interested in any scientific ideas involving weaponry. The morning after the inventor's death, his nephew Sava Kosanovic hurried to his uncle's room at the Hotel New Yorker. By the time he arrived, Tesla's body had already been removed, and Kosanovic suspected that someone had already gone through his uncle's effects. Technical papers were missing as well as a black notebook he knew Tesla kept - a notebook with several hundred pages, some of which were marked "Government." Just after World War II, there was a renewed interest in beam weapons. Copies of Tesla's papers on particle beam weaponry were sent to Patterson Air Force Base in Dayton, Ohio. An operation code-named "Project Nick" was heavily funded and placed under the command of Brigadier General L. C. Craigie to test the feasibility of Tesla's concept. Details of the experiments were never published, and the project was apparently discontinued. But something peculiar happened. The copies of Tesla's papers disappeared and nobody knows what happened to them.