My name isXXXXX'm a licensed attorney. Glad to try and help out.
Sure sorry for your circumstances, truly. My heart goes out to your father.
I apologize for any confusion. Sometimes we receive a question from a student, and I thought that might be the case when you mentioned to refer to the citations you mentioned. In other words, I thought you might be wanting a paper drafted using those citations. In any event, sorry about that and please just ignore my question.
Alright, here is how this works.
For the jurisdictional bases, or put differently the legal authority or power, please check out the following provision (just click the link):
28 U.S.C. § 533(1) and (3)
The bases are two-fold, namely to: (1) "detect and prosecute crimes against the United States."; and (2) "conduct such other investigations regarding official matters under the control of the Department of Justice and the Department of State as may be directed by the Attorney General."
Now, in the civil rights context, there is certainly more involvement on a state basis. However, for a criminal matter such as you have described occurring solely within the borders on one state, ordinarily there would be no basis for federal jurisdiction. There can be a surprising amount of nuances, such as with the United States Constitution Interstate Commerce Clause. However, nothing related in the scenario you presented trigger any basis for federal jurisdiction.
If you have a follow-up question or need clarification, please just say the word by using "reply" to reach me.
I hope all works out for both of you.