LEXINGTON, Mo. -- Questions linger tonight as to how and why a deadly explosion occurred in Lexington, Missouri, where a 5-year-old boy was killed, two others were hurt and structures were damaged. "Somebody messed up, and this is what's left over. Everybody's lives are completely upside down rig ht now,” Alicia Billings, whose home was destroyed, said. The explosion happened on Wednesday night. The warning signs appear to have been there; a damaged gas line and a strong smell of gas in the air. Family says surviving victims have long road ahead after Lexington house explosion Getting answers to questions has proved difficult so far, even with multiple agencies on the ground. Billings was holding her 18-month-old granddaughter on the patio, the part of that patio that is still intact. Tonight, she's glad to be alive but, understandably, angry and upset. “That's not my house that's a bunch of crap laying in the yard underneath it are my pictures, my wedding dress, all my stuff,” she said, looking back at her home that’s now rubble. "I asked them, 'Should I stay, should I be here?' They told me over and over, 'Yes, you can stay.' I asked at least three different people, they all said, 'You're fine,'” Billings said. "If I would have been inside the house, we wouldn't have come out. The inside imploded the whole wall came in on us,” she said. "How did this happen? Why did this happen? Why did you let us stay? Are they the ones who are responsible for it? Is it the contractor? I don't know," she asked. Back at the scene of the explosion, the foundation is cracked. You can see the steps the Cunningham family used to walk into their home. A TV rests on top of shards of wood, and 5-year-old Alistar Cunningham's Spiderman mask is charred. As for Billings, she hasn't heard from the utility company or the city. "I hope that we truly find out what the cause was, but unfortunately, whether we even find the cause, it will not bring that young boy back,” Randy Norden said. International student visas revoked at Northwest Missouri State University Missouri 811 Executive Director Randy Norden says they received the ticket for the dig. The contractor says the gas line was not marked by the utility company. "When you follow the rules, that really puts us in a strong direction to prevent these tragedies from happening,” Norden said. "Somebody messed up, you know. Somebody's mistake cost all this is horrible,” Billings said. FOX4 has reached out to Liberty Utilities multiple times by phone and here on the ground; we have not heard back. We do know that the NTSB got here on the ground today. As far as Lexington goes, they are still without gas citywide. There remains no timetable as to when that will be restored. ...read more read less