The Chosun Ilbo first reported on Nov 4th that former idol A is under police investigation for taking methamphetamine.
According to the media, Nowon Police Station in Seoul arrested A at his home in Gwangjin-gu, Seoul that day and is investigating him. A is suspected of taking methamphetamine.
A debuted as a member of an idol group in 2012, but he has reportedly stopped his career as a singer after the team disbanded.
Source: nate