The federal case, and facts stated by Harkins during his pleas Wednesday, arose from a local investigation based on tips that he was using and selling illegal drugs at his home.
A search Christina Carmona's vehicle yielded the discovery of approximately 3,400 fentanyl pills, a firearm and 436 grams or approximately 0.96 pounds of methamphetamine.
If the case went to trial and Ronnell Robertson was convicted, he could have faced a sentence of 15 years, eight months imprisonment to nearly 20 years imprisonment.