Comedian and civil rights activist Dick Gregory, who broke barriers in the 1960's died in Washington D.C. on Saturday. 

He was 84 years-old. The cause of death is unclear.

Gregory used his platform to spread social justice messages. In the 1960's, he took part in the the open housing march and fought against segregation in Milwaukee schools. 

In 1967, Gregory marched alongside Father James E. Groppi and Margaret Rozga calling for open housing.

"He brought all the energy and not only national attention but spiritual energy to Milwaukee," said Rozga. 

The 50th anniversary of the marches is coming up on August 28th. Rozga said it will not be the same without him.