Relatives of MH17 crash victims have filed a nearly $900 million suit against a one-time leader of Ukranian insurgents over the shooting down of the jet over the rebel-held east of the country last year.The Malaysia Airlines jet was blown out of the sky on July 17, 2014, killing all 298 people on board. Ukraine and the West have accused the separatists of using a surface-to-air missile supplied by Moscow to down the Boeing. Russia has denied the claim and suggested that a Ukrainian missile may have hit it.VIDEOGRAPHIC