A group of friends got together and decided to sell marijuana and cocaine to make money. Penny maintained a Facebook page through which she would send private messages to other friends in other states letting them know of the drugs available for sale. Penny and Asia also confirmed the financial arrangement of how all the friends would pay dues for the purchase of firearms or to pay bribes to local officials so their drug sales would run uninterrupted. When a local gang moved into the friends' neighborhood as rival drug sellers, two members of the group texted that the gang leader would be "faded straight up." The gang leader's body was found floating in the river 2 weeks later. The friends made so much drug money that they purchased and invested their money in local Laundromats surrounding their neighborhood. One bank manager became suspicious of the large wads of cash the friends placed for deposit and alerted authorities.

What would federal authorities have to show to bring a criminal RICO action against the group of drug-dealing friends?

(Use IRAC)