"Two men have been charged with killing an Ohio real estate agent who was showing a vacant house for sale, the first of two agents killed in a week in the region, authorities said Friday. Robert Brooks, 25, of Youngstown, and Grant Cooper, 21, of Hubbard, had an initial appearance Friday before Youngstown Municipal Court Judge Robert Milich by video hookup from jail. Both were locked up earlier on other charges and were held without bond. Brooks and Cooper each independently confessed to ""the crimes against"" real estate agent Vivian Martin, 67, who was found Monday in a vacant home she was showing them, according to an affidavit. Martin was strangled before her body was burned beyond recognition in a fire that gutted the house. The affidavit reveals chilling details of the final moments before Martin died. Family members told police that she had set up an appointment to show that property to a man named ""Steve West"" at about 1:30 p.m. on Sept. 20."