Perkins Coie associate Sher Kung, best known for her work on civil rights advocacy cases, including the American Civil Liberties Union lawsuit that helped overturn the military’s Don’t Ask, Don’t Tell policy for gay service members, was killed on Friday while bicycling to work in downtown Seattle.

Kung, 31, collided with a truck at the section of a road with a reputation for being hazardous to cyclists, according to media reports.