[1] Accused of alleged sexual abuse of underage girls during castings for a female pop group, he hanged himself in his Berlin jail cell.

[3][4] Some of Demmler's compositions, such as “Come Into My Guitar Boat” and “Every Person Can Love Everyone”, were award-winning works.

[5] He was active in the peaceful revolution against the East German communist government, which led to the fall of the Berlin Wall in 1989.

[5] In 2009, Demmler was to stand trial for alleged sexual abuse, stemming from accusations that he molested six underage girls between 1995 and 1999 during castings in his Prenzlauer Berg district apartment in Berlin for a female pop group.

[5][2] The day of the trial, Demmler hanged himself in his jail cell in the Moabit district in Berlin.