Marcelo runs the label Absurd Records (3) as well as a record shop called Extreme Noise Discos.
Used to be the editor of the fanzine called United Forces from 1986 to 1991:
www.instagram.com/unitedforceszine
www.youtube.com/watch?v=v0DJIz1UG0g
Was also vocalist of the grindcore band Rot for several years.