Maine’s highest court has upheld the convictions and concurrent life prison sentences of an Augusta man convicted in a brutal machete attack on a father and his 10-year-old daughter in Pittston.The defense claimed that dual life sentences imposed on Daniel Fortune were unconstitutionally disproportionate to the crime. Fortune’s lawyers also argued that the facts didn’t support findings of premeditation and extreme cruelty.The state supreme court rejected all of those arguments Tuesday. Fortune was convicted of attacking William Guerrette Jr. and his daughter, Nicole, during a late-night home invasion in May 2008 that left both near death and permanently injured.Fortune was convicted of two counts of aggravated attempted murder and other charges. His foster brother, Leo Hylton, is serving a 50-year sentence for the attacks. (The Associated Press).