 Federal investigators are looking into the oversight of a father and son team that was conducting the hazardous operation of moving a gas meter at a Minneapolis school when a natural gas explosion caused part of the building to collapse, killing two people. The father and son were working for Master Mechanical that was moving the meter from inside Minnehaha Academy to the outside of the school as part of Centerpoint Energy's plan to move meters outside for easier access. The TSP investigators will also look into whether the father or son attempting to move the meter were fatigued, distracted or impaired, which is standard in any investigation. The question of whether the gas was shut off at the street or at the building will also be examined. Investigators use firetrucks ladders to get over the rubble and get a closer look at the destruction, but excavators need to begin the process of removing debris without destroying evidence before investigators can get inside. Administrators of Minnehaha Academy have delayed the start of the new school year by two weeks till September 5th. If you've enjoyed this segment of Lakeland News, please consider making a tax-deductible contribution to Lakeland Public Television.