A killer wants to challenge his conviction for the murder of a missing businesswoman because an allegedly prejudicial video featuring him apparently dressed as a woman was put on a newspaper's app before the jury returned a verdict.

Colin Coats, 43, was jailed for life and ordered to serve at least 33 years in prison earlier this year after he was found guilty of the abduction, torture and murder of 27-year-old Lynda Spence, following an 11-week trial earlier this year.

Coats is challenging his conviction and his legal team have made a bid to amend his grounds of appeal to include the appearance of the video.

Advocate depute Douglas Fairley QC said the ground of appeal was "misconceived" and began from an erroneous factual basis.

He said the video was on an ipad edition of the Daily Record from March 29 until it was removed on April 2.

Coats was convicted on April 8.

The application was continued to next month.