Alethea Taylor, 63, from Orleton Village, Herefordshire, was killed by husband John on 18 January 2012
Funeral director John Taylor, then 61, wanted to be with mistress Alison Dearden
Alethea s niece Lorraine spoke about her in Channel 5 s Countdown To Murder
Said John smirked and winked during trial where he was convicted to life in jail
Lorraine told how John has never revealed where he hid Alethea s body