James could have died from natural causes, , ie during a fit, the TV says post-mortum is inconclusive.
I wonder if money was behind all this, immediately on his death all benefits would cease, probably around �600 per month, if the family could pretend all was well the money would still be paid.
The mother could no longer cope with the grief and the deceipt so she committed suicide, or she was going to inform someone so had to be disposed of
Whatever happened it is a terrible shame