He was released on parole in August 2011, halfway through his jail term, with the 289 days he spent incustody before sentencing being taken into account.
Gerhartsreiter was close to the end of a prison term for the kidnapping of his young daughter in a Boston custody dispute when the murder charge interrupted his chance to regain his freedom.
Lord Justice Clerk Lord Carloway remanded Olej incustody and deferred sentencing until next month, where he will impose a mandatory life term and set the length of time to be served.