[1][2][3][4] Witscher got his start in the underground music scene in Los Angeles, CA in the early 2000s performing with his brother Greg in groups such as Rainbow Blanket and Cruel Face.

In 2004 he started the label Callow God, releasing music by many important west coast Harsh Noise artists.

Following a move to Iowa City in 2007 Witscher began using the moniker Rene Hell.

[6] In April 2019 he performed at the festival Neo-Pastiche: Changes in American Music at Black Mountain College Museum + Arts Center in Asheville, NC alongside Petr Kotik, the S.E.M.

[8] In late 2020 Callahan and Witscher founded the contemporary music label Flea.