On 3 August 2004 - 13 months after coming home - Peter phoned work to say his mother was ill and that he would not be coming in.
He shaved and put on his uniform, then filled his car with paperwork from Iraq, letters from Donna, photos from their wedding and more recent pictures, and cuddly toys the children had played with.
He taped up the car's exhaust pipe and started the engine. Donna found him dead at 3pm.
He was 45 years old.