The reason that federal courts do not try these cases is because there are already special courts just for these types of cases.
Answer:
On the evening of April 14, conspirator Lewis T. Powell burst into Secretary of State Seward’s home, seriously wounding him and three others, while George A. Atzerodt, assigned to Vice President Johnson, lost his nerve and fled.
Meanwhile, just after 10 p.m., Booth entered Lincoln’s private theater box unnoticed, and shot the president with a single bullet in the back of his head. Although Booth had broken his left leg jumping from Lincoln’s box, he succeeded in escaping Washington.
Hope this helped... maybe brainiest??
A "Letter from the Birmingham Jail," written by Martin Luther King Jr. is a response to white clerics who claimed he was extremist and violent. A specific example that King addressed was the "willingness to break the laws" that clerics had seen as a threat to society. He then defines this term of an "unjust law" by stating that "an unjust law is a human law that is not rooted in the eternal and natural law." In one example, King exemplifies how something can be legally and morally wrong. "We can never forget that everything Hitler did in Germany was legal." In this way Martin Luther King examines human laws that in many cases are contrary to the "eternal and natural law".