LACROSSE, Wis. — The county prosecutors in LaCrosse have done their homework finally and refiled murder charges against a Genoa man. This time the prosecutors assured the judge that they had reviewed reports from the fire marshal and the coroner.Earlier in the week Judge Scott Horne scolded the prosecutors and threatened to dismiss their filings. This time prosecutors were able to tell the judge definitively that Alexa Picket, age 27, was already deceased before the fire. That contradicted the claim of Matthew Sierra, age 38, of Genoa, that she was alive when he left her place. Sierra, meanwhile, remains jailed in lieu of $1 million bail on charges now recognized by Judge Horne as first-degree intentional homicide, arson, and animal mistreatment. Not only did Pickett die but so too an unborn child and her dog.