Partner of doctor who committed suicide after coming out to his parents is embarking on 130 mile walk in his fiancee's memory.

VOICED: Exterior shots Matthew Ogston founder of Naz and Matt foundation handing out leaflets to passers by, Exterior Interview Matthew Ogston speaking about religion and being gay, Exterior shots Matthew campaigning, Exterior Interview Ajmal Masroor, Imam, External Interview Tracey Byrne, CEO Lesbian and Gay Christian Movement *** THIS CLIP CONTAINS BLACK HOLE -THIRD PARTY COPYRIGHTS *** on April 18, 2015 in London, England.