now, natasha trethewey has written a memoir of her childhood, the murder of her mother, and her own calling book is published today, and jeffrey brown has this conversation for our ongoing arts a culture series, "canvas." >> "three weeks gone my mother came to me in a dream her body whole again but for one perfect wound..." >> brown: in the poem "articulation," natasha trethewey writes of the violent death of her mother, and how that forever shaped her life and work. " w then could i not answer her life with mine, she who sed me with hers? and how could i not, bathed in the light of her wound, find my calling the?" >> brown: natasha trethewey was born to a black mother, gwendolyn turnbough, and white father, eric trethewey. it was 1966, in mississippi. mixed-raced marriages had only recently been legalized, but jim crow customs continued in 1972, her parents divorced. her father, who became a poet and english professor, died in 2014. the young nasha spent her teenage years in atlanta, where her mother met and marriedhe anman, joel grimmette, who would beat, abuse, and, in 1985, murder her.