Documentary maker James Redford has died at the age of 58.

The son of actor Robert Redford (photo) suffered from cancer, the San Francisco Firefighters Cancer Prevention Foundation announced on Facebook on Sunday evening.

During his lifetime, James Redford worked for professions such as the fire service, because according to him they are exposed to carcinogenic substances without proper protection.

To bring that problem to the attention of a large audience, he made the documentary

Toxic Hot Seat

for HBO

in 2013

.

But Redford also stood up for other at-risk groups in American society.

In the documentary

Paper Tigers

(2015), for example, he examines an American high school that mainly focuses on children and young people who suffered emotional trauma in their youth.

James Redford was one of the four children of Robert Redford and Lola Van Wagenen.