Peter Birro (born 19 July 1966 in Gothenburg) is a Swedish script writer, poet and musician. . In the 1980s and early 1990s, Birro was an obscure poet who performed with the almost equally obscure Swedish band The Christer Petterssons (named after the suspected assassin of Swedish Prime minister Olof Palme, Christer Pettersson). Birro's breakthrough as a writer was his script for the TV-series Hammarkullen (1997) directed by Agneta Fagerström-Olsson, which follows some people living in a low-income suburb of Gothenburg.
https://en.wikipedia.org/wiki/Peter_Birro