Hedig was a Lowen, he was also the leader of a wesen Carnivale. Where he abused his followers, forcing them to show there true selves to often, leading to them begining to loose control.
To cover up his crimes, Hedig had been murdering people for years, to make certain that he could have a hold over his employee's aswell as keep himself in buisness. According to him he ran away from home when he was 13, and bought the canival in 2004 from its original owner who taught him all he knew.
His pushing his staff to far lead to problems, especially from Max, a Blutbad who was starting to show signs of loosing control. Following two women inviting Max over one night to try and get him to show them how he did the trick, Max lost control and scared them. To cover it up Hedig murdered the women, and left Max who had no memory of the events thinking he did it. Investigating the murder, Nick and Hank arrived to talk, Hedig managed to keep quiet, and cover up there supposed masks.
Later after Max lost control again, he accidentally injured his girlfriend and fellow performer Genvieve. Angered by this Hedig ordered they hire a new girl as Genevieve couldn't perform. By accident he hired Rosalee, who had arrived to investigate the claim of mistreetment. This however angered Max, who felt Genevieve was being relaced. However Hedig faced him, warning he would be imprison if it wasn't for him, he revealed it was him who killed the girls, but blackmailed Max as the police would think it was him.
However during the act, Max lost control and attacked Rosalee, meanwhire Nick and Hank arrived, seeing Nick and realising he was a Grimm, Hedig ran for his life. However in the funhouse he was confronted by his staff for all his abuse, he tried to talk his way out, but was killed when Ivan (a dragon like creature) burnt him to death.