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Jeanine Cammarata was last seen alive on Saturday night while she was driving to Queens to visit her two children, who lived with her estranged husband.

Ms. Cammarata, a first-grade teacher in Staten Island, had filed for divorce in February, which started a contentious custody battle with her husband, Michael Cammarata. The two were scheduled to appear in court on Monday.

But Ms. Cammarata never showed up. The next day, she did not report for work either.

On Thursday, five days after Ms. Cammarata, 37, went missing, the police found her charred remains inside a unit at a Staten Island storage facility. By Friday afternoon, Mr. Cammarata, 42, and his girlfriend, Ayisha Egea, 41, were charged with murder and concealing a corpse.

Ms. Cammarata’s body was burned beyond recognition, the police said. The city medical examiner’s office said on Friday afternoon that it had identified her through dental records.