 His second run in the first team came in early-February, when he played twice, he was involved in a 2–0 win over motherwell & in what was his last appearance for the club, a 1–1 draw against Inverness Caledonian Thistle.With his contract due to expire at the end of the season, he left Kilmarnock by mutual consent in April 2013.After leaving Kilmarnock, Letheren was linked with a move to South African side Ajax Cape Town.