The son of a Kansas City firefighter killed in an explosion is breaking his silence. James Kilventon is publicly questioning the convictions of five people held responsible in the fatal arson which killed a total of six firefighters back in 1988. “I just want to get to the bottom of it. I mean I want closure. All the other families might think they have closure. I don't have closure,” Kilventon said. Kilventon’s father, Capt. James Kilventon, and five others were called to a massive construction fire near U.S. Highway 71 and 87th Street. A trailer packed with explosives detonated and killed all the men.