Lattimer was assigned to the prisoner's barracks at Nuremberg in the spring of 1945, where notorious inmates like Hermann Göring were housed during their war crimes trial.
Lattimer further proposed that Hitler's discovery of his illness was a factor in postponing Germany's attack on Britain in late 1940 and directing his attention towards Russia.
After the war, Lattimer spent most of the rest of his life teaching at the Columbia University College of Physicians and Surgeons, where he was a professor and became chairman of the urology department of Presbyterian Hospital from 1955 to 1980.
[1] Lattimer performed ballistic tests and other research to prove that Lee Harvey Oswald was likely the sniper who shot and killed President John F. Kennedy from the Texas School Book Depository in Dallas.
Lattimer was the owner of several grisly historical artifacts including one of the two cyanide capsules that Göring smuggled into his Nuremberg prison (Göring used the other capsule to commit suicide minutes before he was to be executed), a blood-stained collar that President Lincoln wore to Ford's Theater the night he was shot, and a medically preserved section of penile tissue which Lattimer said belonged to Napoleon Bonaparte.