They are essentially saying he's "mixed" in it and not specifying other than 'narcotics crime'. Moreover, he's notably not among the persons arrested.
He's probably but a suspected buyer/user, and the newslet that broke this out (MTV3) is using his name to market their TV report scheduled for tonight's episode of their investigative reporting show.
We as a nation are right off the news frenzy of a very popular schlager singer being in the buying end of a crystal meth scene, but from the reporting you'd think he was the biggest crook.