Karsten Speck

Karsten Pitann (25 November 1986 – 15 October 2020), better known by his ring name Karsten Beck, was a German professional wrestler. He was best known for his work with Westside Xtreme Wrestling (wXw).
In wXw, Beck was a two-time Unified World Wrestling Champion, and apart from John Klinger's one-day reign, he was the champion for over a year from January 2015 to March 2016. Beck was also a one-time World Tag Team Champion, alongside Adam Polak. He worked as a heel during his most successful years with wXw, and became known for cheating to win his matches. In 2016, Beck was forced to retire after being diagnosed with a brain tumour, and having turned face, he was later used as the director of sports, the promotion's authority figure, for the next four years. He died in October 2020 from brain cancer.

Biography fallback source: Wikipedia