According to a tree on Ancestry, which contains the information you mention, this is the death. No records in the UK.
Death 1 Jan 2006 Shrewsbury, Worcester, Massachusetts, USA
Colin
Think this entry has just been based on guesstimates re. birth/death.
His birth was in June quarter 1961 - submitter has entered birth as 1/6/1961
Death entered, as stated above, as 1/1/2006 but only as Shrewsbury (no county/country) and it seems it's Ancestry themselves who've ascribed Shrewsbury as being in Worcester, Mass, USA!!
I'm wondering whether he changed his surname to Hill. A James Martin Hill born 19/5/1961, death reg'd September 2006 Shropshire (electoral rolls show was in Shrewsbury). However, there is no birth entry for a James M Hill in 1961 hence my wondering if this is your man!!
So, if James Martin Sapsed was actually born 19/5/1961 (which ties in with birth entry in June quarter) then looks like he did change his surname but to Hill, not Williams. Are there any family members who may know what his actual birthdate was?
Annette