A temporary delay has been granted in the appeal of an Alberta man convicted of killing his Edmonton-born wife in North Carolina.

Brad Cooper was convicted of first degree murder in May 2011, three years after Nancy Cooper went missing from the couple’s home.

Her body was found several days later in a drainage ditch. An autopsy concluded she had died of asphyxiation.

Cooper was granted a new trial earlier in September after his lawyer argued that her client did not receive a fair trial.

In a 47-page appeal filed in November 2012, Cooper’s lawyers said that the jury should have been allowed to hear from defence witnesses who suggested Cooper’s computer containing Google maps of the area where his wife’s body was found may have been tampered with.

The decision to delay the appeal temporarily was prompted by a request from North Carolina's Attorney General's office, which has asked for a review of the ruling by the state's Supreme court.