[DannyBee]

Need more details.

So, here is the common law/generic multistate answer (and what would have been chargeable in my old state):

If someone asked someone else to help them kill occupy leaders, this would have been solicitation (and the crime would be completed whether they said yes or no).

If they both agreed, and then committed some overt act in furtherance, it would be conspiracy. The overt act does not have to be related to the target offense of the conspiracy, just in furtherance. IE if you are being charged with conspiracy to commit murder, the overt act does not need to be "buying a gun". It could be "stealing money from an old lady that was later used to buy a gun".

Here, it just says "they planned to obtain intelligence, and then formulate a plan to kill people".

If they really just planned to have a plan, that doesn't seem like a conspiracy to commit murder, unless they all had really agreed to commit murder, and were still working out the details. It's not really clear.