We are now in the 20th anniversary year of 9/11, the worst terror atrocity the world has witnessed, the day when more than 2,600 people were killed in the Twin Towers and the surrounding area. At first, the Campbell family and [fiancee Caroline Burbank] were sure [Geoff Campbell] was alive. But one year later, fragments of a shoulder blade containing Geoff's DNA were found amid World Trade Centre rubble. It was then that they started to question the official account of the disaster. After examining the testimony of hundreds of eyewitnesses and forensically dissecting the scientific trail of the towers' collapse, down to analysing dust on the ground at the New York site, they have compiled a lengthy dossier. It is a document which, they claim, proves that controlled demolition explosives not aircraft " brought the buildings down. Later this month they will formally ask the acting Attorney General for England and Wales, Michael Ellis ... to allow them to apply to the High Court for a fresh inquest into Geoff's death. Six other families who lost loved ones in the Twin Towers plane attacks on 9/11 plan to send their own statements in support of the Campbells. If Mr Ellis gives the go-ahead " as the Campbells think likely " they plan an attempt to dismantle the notion that the Twin Towers were brought down by raging fires caused by leaking jet fuel which melted their supporting metal girders. At any new inquest, they would call in ... scientists who insist the plane attacks could not have toppled the two buildings.