Mac Miller's Father Breaks Silence on Arrest of Rapper's Alleged Drug Dealer.<br />Cameron James Pettit was <br />recently arrested for allegedly <br />supplying the late rapper with the <br />drugs that led to his death last year.<br />While attending a commemorative event <br />for his son in Pittsburgh, Pennsylvania, on Sept. 7, <br />Miller's father, Mark McCormick, spoke out.<br />So they finally caught the motherf----- that sold him the drugs that killed him. And we find some comfort in that, Mark McCormick, via Twitter video.<br />McCormick also urged the crowd <br />to stay away from drugs.<br />Many of us who were young, including me, experimented with drugs but it’s a different f------ world out there. And all it takes is a little stone, a little tiny stone of fentanyl and cocaine <br />and you’re dead, Mark McCormick, via Twitter video.<br />Don’t take the risk, <br />it’s just not worth it, Mark McCormick, via Twitter video.<br />Authorities allege that Pettit sold Miller <br />counterfeit oxycodone that contained fentanyl, <br />which is about "50 times more potent than heroin." .<br />Miller's death was ruled to be <br />a result of mixed drug toxicity <br />from fentanyl, cocaine and alcohol