Robin, Vol. 2 #98 (2002)

Bruce Wayne: Murderer? - Part Six: The Thin Line
Frustrated by life at Brentwood, Robin continues to sneak off campus to blow off some steam as Robin. But as he tries to deal with his problems as Tim Drake, he's left in the lurch by Alfred's sudden departure. When one of his friends from school is kidnapped, however, he has to spring into action... but as Tim Drake, or as Robin?
Release Date: 2002