CEDAR RAPIDS, Iowa — New cell phone video obtained by Iowa's News Now through friends & family, show the final moments of a Cedar Rapids woman's life. Devonna Walker was stabbed to death on January 2 during an argument with a neighbor. Walker was stabbed to death that night and leaves behind three children. The video starts out across the street from the Cambridge Townhomes 2100 block of North Town Court NE. Walker and a woman in a black sweatshirt holding a dog's leash are arguing about a previous alleged attack.