According to reports, Virginia Walmart shooter Andre Bing threw away his "kill list" which included the names of his co-workers along with their shift hours. 

Victims Brian Pendleton, Randall Blevins, Lorenzo Gamble, and Kellie Pyle do not appear on the list. Following the discovery of the list, FBI agents swarmed Bing's house in search of more clues pointing toward a motive. 

Moreover, the list comes on the heels of first repsonders finding a note Bing apparently wrote which was a self pitying manifesto where he lamented about unspecified changes in his employment status and complained other employees were harassing him.

Source: Nypost.com