Dallas Taylor, who played drums for Crosby, Stills, Nash and Young, Manassas and Stephen Stills, has died at the age of 66 of unknown causes.

Taylor's wife, Patti Mcgovern-Taylor, announced the news via Facebook today. According to Variety, Taylor began his music career with the band Clear Light before meeting Stills and being invited to perform on Crosby, Stills & Nash's groundbreaking debut album. Less than a year later, he was back behind the kit as the trio became a quartet with the addition of Neil Young and recorded the 1970 masterpiece 'Deja Vu.'

He stayed with Stills for the guitarist's 1970 self-titled solo album, and joined him in the highly underrated group Manassas for their 1972 and 1973 albums. Taylor later worked with Van Morrison and Paul Butterfield.

In 1985, he began working as an addiction specialist, dedicated to "providing alcohol and drug interventions and recovery help to individuals and their loved ones throughout the United States and abroad."