From 1978 to 1981, Robo was the drummer for US punk band Black Flag, performing on the EPs 'Jealous Again', 'Six Pack', and their first full-length album 'Damaged'. His tenure in Black Flag ended when, upon completing a tour of England, it was discovered that Robo's visa was expired and he was deported from the UK to Colombia.
Robo joined The Misfits during the summer of 1982. Robo's drumming is featured on the 'Earth A.D./Wolfs Blood' LP and the 'Die, Die My Darling' 12". He left The Misfits in August 1983 because he couldn't tolerate working with Glenn Danzig any longer.
After leaving The Misfits, it was said that he spent some time in New Jersey, working with the Caiafa brothers (Jerry Only and Doyle (3)) for their father. After a while he fell off the radar and there was some word that he may have returned to his native Colombia.
Robo re-appeared in 2001 when he joined the Misfits for their 25th anniversary tour and returned to the band again in 2005. He also played with Black Flag at their 2003 cat benefit reunion show.
In 2010, Robo was removed from the Misfits after problems with his Colombian passport made touring problematic for the band.