Martin Pohl, better known by his stage name Řezník or M.Engele, is a Czech rapper, an exponent of the horrorcore genre in the Czech Republic. He is known for his provocative songs glorifying violence against women, homeless people, drug addicts and gays. Řezník uses general horrorcore themes and he has collaborated with many interprets like King Gordy, Bizarre, Lex the Hex Master, Mastamind, Madchild, Necro, Brotha Lynch Hung, Sean Strange, Snowgoons, Scum, Razakel, The J. Hexx Project, Heaven, Psych Ward, members of Butcher's Harem, etc. According to a leaked poll result of the national Czech music award Český slavík, he won in 2013 in the category "Internet Star". He was, however, disqualified from the poll by the organizers, due to alleged objectionable conduct expressed in his songs. It led to protests of notable Czech artists, such as Tomáš Klus and Matěj Ruppert. On 29 November 2013, Tomáš Klus announced his departure from Český slavík, while Ruppert returned his own award which he received in 2006, accusing the organizers of censorship.