Officers took Kosuke Oba, a 33-year-old resident of Nakano Ward, into custody for allegedly using stimulant drugs between late October and early November.
Just before 1:00 a.m. on November 3, Oba telephoned the local fire department to report that he was having trouble breathing. After being transported to a local hospital, he indicated that his condition might be due to his recent use of stimulant drugs.
A drug test of the suspect’s urine gave a positive result.
Oba has written the music for a number of popular artists, including “The Sailor Dreams Up a Storm” for AKB48 and Arashi’s “Story.” He has also contributed a number of pieces to the animation “The Prince of Tennis.”