This is my favorite version of the tune. You'll notice that the lyrics are somewhat different.
The Day Conny Kramer Died--Juliane Werding (1972)
“...In 1972, a cover of the song called “Am Tag als Conny Kramer starb” (translation: “On the Day that Conny Kramer Died”) was a number-one hit in West Germany for singer Juliane Werding. For this version, the lyrics were not translated but rather changed completely to an anti-drug anthem about a young man dying because of his drug addiction...”