In a letter found on his body, Slater wrote: "On the rocks. No hope. No daylight. God forgive me for this act, but I am hopeless, and if there is one among my English and American friends who will have a friendly thought left for me let them now show it by doing all they can for my poor, faithful wife. I have led a white man's life, but this is a degraded dog's finish, I am broken-hearted, but not insane.--C.D.S." On September 10, 1912, a distinguished company of artists gave a performance at the London Coliseum for the benefit of Slater's widow and children.