Original sentence: Topher, now mentally unstable, explains to DeWitt that a phone call could be made, and all of thosewho picked up the phone would be imprinted (similar to the way Echo was wiped in "Gray Hour") to kill everyone else
Edited sentence: Topher, now mentally unstable, explains to DeWitt that a phone call could be made, and all of those who picked up the phone would be imprinted (similar to the way Echo was wiped in "Gray Hour") to kill everyone else