t comment on pending litigation. Dig deeper: This is the second lawsuit filed against Atmos on behalf of one of the victims. In early June, the Dallas law firm Hamilton Wingo filed a wrongful death lawsuit on behalf of the family of Sylvia Collins, an 81-year-old community activist who was killed along with two others. The suit accuses Atmos Energy, a drilling company, and the apartment management of gross negligence resulting in the tragedy. Sylvia Collins Oak Cliff apartment explosion The backstory: The explosion and massive fire happened on Thursday, May 28, at The Clyde apartments, located near the corner of East 9th Street and North Patton Avenue. Three people were killed, and five others were hospitalized. Images from SKY 4 showed the 22-unit apartment building fully engulfed in flames. The windows on neighboring buildings appeared to be blown out and debris was scattered across the street. There also appeared to be a utility truck that was affected by the fire. Neighbors said they heard a loud boom, and they felt their own apartments shake before a large plume of black smoke rise high into the Dallas sky. At peak, there were more than 100 firefighters at the scene of the five-alarm fire. What's next: Lyon says he has previously sued Atmos Energy in similar cases dating back to 2000, and each of those cases were settled before reaching court.