Gunman had fled twice in two weeks
By JASON TRAHAN and TANYA EISERER /DALLAS, Tex. - The man who killed a Dallas police officer Friday fled days earlier from members of a federal fugitive task force who saw him leave the Oak Cliff home of a possible associate of the feared Mexican drug enforcers, the Zetas, police said Saturday.
The Dallas Morning News
Officer Down: Cpl Mark Nix
Dallas officer's killer has lengthy record, police say