Mac Miller's close friend praises Ariana Grande for being 'deeply helpful and effective' in his sobriety

Mac Miller's close friend Shane Powers is speaking out in support of Ariana Grande. The late rapper’s ex-girlfriend has been the target of unwarranted hate and blame since Miller was found dead in his home Friday from a suspected overdose. Miller, who was open about his sobriety struggles, and Grande split in May after nearly two years of dating.