Paula Vennells breaks down in tears amid grilling at Post Office inquiry - as shamed ex-boss apologises to hundreds of wrongly convicted postmasters but insists she was 'too trusting' and information was withheld from her
Ms Vennells broke down again as she was asked about her response to the death of Martin Griffiths, a subpostmaster who died by suicide after walking in front of a bus after being pursued for a shortfall.