Kuala Lumpur (AFP) - Emotional relatives of those aboard doomed Malaysia Airlines Flight MH370 Thursday said they hoped the first proof that it crashed will help finally solve the agonising mystery, but many also expressed anger and disbelief.Long-suffering families of the 239 people on board the flight have been waiting since March 8 last year for the first evidence of what happened to the Boeing 777, which vanished en route from Kuala Lumpur to Beijing.They have struggled with a desire for closure while holding onto slim hopes that those on board might still be alive, with widespread criticism of Malaysia's handling of the disaster.Most of those on the plane were Chinese and many still refuse to believe their loved ones are dead, despite Malaysian Prime Minister Najib Razak announcing wreckage found on the French Indian Ocean island of Reunion was from the jet."I don't believe this latest information about the plane, they have been lying to us from the beginning," said Zhang Yongli, whose daughter is missing."I know my daughter is out there, but they won't tell us the truth," he added.Bao Lanfang, whose grandson was also on the plane, told reporters: "Everyone has been lying to us", before collapsing on the floor and crying outside the Beijing offices of Malaysia Airlines."I will do anything to see him again," the 63-year-old added through her tears.Some families said the confirmation was not enough to lay the matter to rest, and demanded to know why the plane went off course, flying for hours after its communications and tracking systems were shut down.Najib, whose government has been accused by next-of-kin of a possible cover-up and insensitive treatment of families -- charges that have been vehemently denied -- gave no indication that analysis of the debris yielded any clues into the cause of the disappearance."Now I want to know where the main body of the plane is so that we can take out the passengers and get the black box so we can know what happened.