She did more than say, “I’ll kill you.” She attempted to get someone to do it.
she talked to someone else about it but that is the agreement between two parties part of the definition, but not the overt act part.
“Federal statutes, and many state statutes, now require not only agreement and intent but also the commission of an Overt Act in furtherance of the agreement.”
I am not sure, since it says ‘many state[s]’ if it applies to her state